Filename extension is usually noted in parentheses if they differ from the file format 's name or abbreviation. Many operating systems do not limit filenames to one extension shorter than 4 characters, as was common with some operating systems that supported the File Allocation Table (FAT) file system. Examples of operating systems that do not impose this limit include Unix-like systems, and Microsoft Windows NT , 95 -98 , and ME which have no three character limit on extensions for 32-bit or 64-bit applications on file systems other than pre-Windows 95 and Windows NT 3.5 versions of the FAT file system. Some filenames are given extensions longer than three characters. While MS-DOS and NT always treat the suffix after the last period in a file's name as its extension, in UNIX-like systems, the final period does not necessarily mean that the text after the last period is the file's extension.
Some file formats, such as .txt
or .text
, may be listed multiple times.
Archive and compressed
.?Q? – files that are compressed, often by the SQ program . 7z – 7-Zip compressed file A – an external file extension for C/C++ AAC – Advanced Audio Coding ABB – Android App Bundle – is the Android (and Android TV ) application publishing file format (required by Google Play ) taking over from: ACE – ace : ACE compressed file ALZ – ALZip compressed file APK – For Android see ABB/APK above (APK/Android apps also usable in Windows 11 ); The Alpine Linux distribution also use .apk files as a package format but then with un unrelated definition as in Android. They are often called "a-packs". APPX – Microsoft Application Package (.appx) APP – HarmonyOS APP Packs file format for HarmonyOS apps installable from AppGallery and third party OpenHarmony based app distribution stores. AT3 – Sony's UMD data compression ARC – pre-Zip data compression ARC – Nintendo U8 Archive (mostly Yaz0 compressed) ARJ – ARJ compressed file ASS, SSA – ASS (also SSA) : a subtitles file created by Aegisub , a video typesetting application (also a Halo game engine file) B – (B file) Similar to .a, but less compressed. BA – BA: Scifer Archive (.ba), Scifer External Archive Type BIN – compressed archive, can be read and used by CD-ROMs and Java, extractable by 7-zip and WINRAR BKF – Microsoft backup created by NTBackup .c BLEND – An external 3D file format used by the animation software, Blender . BZ2 – bzip2 BMP – Bitmap Image – You can create one on Windows by right-clicking the home screen, next, click new, then, click Bitmap Image CAB – A cabinet file is a library of compressed files stored as one file. Cabinet files are used to organize installation files that are copied to the user's system. C4 – JEDMICS image files, a DOD system CALS – JEDMICS image files, a DOD system XAML – Used in programs like Visual Studio to create exe files. CPT, SEA – Compact Pro (Macintosh ) CS – File extension for C-Sharp (C#) files DAA – DAA : Closed-format, Windows -only compressed disk image DEB – Debian install package DMG – an Apple compressed/encrypted format DDZ – a file which can only be used by the "daydreamer engine" created by "fever-dreamer", a program similar to RAGS, it's mainly used to make somewhat short games. DN – Adobe Dimension CC file format DNG – "Digital Negative" a type of raw image file format used in digital photography. DPE – Package of AVE documents made with Aquafadas digital publishing tools. EGG – Alzip Egg Edition compressed file EGT – EGT Universal Document also used to create compressed cabinet files replaces .ecab ECAB, EZIP – EGT Compressed Folder used in advanced systems to compress entire system folders, replaced by EGT Universal Document ESD – ESD : Electronic Software Distribution, a compressed and encrypted WIM File ESS – EGT SmartSense File, detects files compressed using the EGT compression system. EXE – Windows application FLIPCHART – Used in Promethean ActivInspire Flipchart Software. FUN – A FUN file is a file that has been encrypted by Jigsaw ransomware, which is malware distributed by cybercriminals. It contains a file, such as a .JPG, .DOCX, .XLSX, .MP4, or .CSV file, that has been renamed and encrypted by the virus. FLM – FL Studio Mobile, can also be used as a project file. FLP – FL Studio Project File GBS, GGP, GSC – GBS OtterUI binary scene file GD – GDScript, belonging to Godot Game Engine GHO, GHS – GHO Norton Ghost GIF – GIF Graphics Interchange Format GZ – gzip Compressed file HEIC – High-Efficiency Image Codec ; less storage space than the equivalent quality JPEG IPG – Format in which Apple Inc. packages their iPod games . can be extracted through Winrar JAR – jar ZIP file with manifest for use with Java applications. JPG – Joint Photographic Experts Group – Image File JPEG – Joint Photographic Experts Group – Image File LAWRENCE – LBR Lawrence Compiler Type file LBR – LBR Library file LLSP3 – Lego Spike program file LQR – LQR LBR Library file compressed by the SQ program . LZH – LHA Lempel, Ziv, Huffman LZ – lzip Compressed file LZO – lzo LZMA – lzma Lempel–Ziv–Markov chain algorithm compressed file LZX – LZX LUA – Lua MBW – MBRWizard archive MHTML – Mime HTML (Hyper-Text Markup Language) code file MIDI, MID – Musical Instrument Digital Interface MLOG – A file format intended to be used for Mindustry Logic MPQ – MPQ Archives Used by Blizzard Entertainment BIN – BIN MacBinary NL2PKG – NoLimits 2 Package NTH – NTH: Nokia Theme Used by Nokia Series 40 cellphones OAR – OAR: OAR archive OGG – Ogg Vorbis Compressed Audio File OSG – Compressed osu! live gameplay archive (optimized for spectating) OSK – Compressed osu! skin archive OSR – Compressed osu! replay archive OSZ – Compressed osu! beatmap archive PAK – Enhanced type of .ARC archive PAR, PAR 2 – PAR Parchive PART – A file used with Stud.Io PAF – PAF Portable Application File PEA – PEA PeaZip archive file PNG – Portable Network Graphic Image File WEBP – Raster image format developed by Google for web graphics PHP – PHP code file PYK – PYK compressed file PK3 – PK3 Quake 3 archive (see note on Doom³) PK4 – PK4 Doom³ archive (opens similarly to a zip archive.) PNJ – a sub-format of the MNG file format, used for encapsulating JPEG files PXZ – a compressed layered image file used for the image editing website, pixlr.com PY, PYW – Python code file PMP – PenguinMod Project PMS – PenguinMod Sprite RAR – RAR Rar Archive, for multiple file archive (rar to .r01-.r99 to s01 and so on) RAG, RAGS – Game file, a game playable in the RAGS game-engine, a free program which both allows people to create games, and play games, games created have the format "RAG game file" RaX – Archive file created by RaX RBXL – Roblox Studio place file (XML, binary) RBXLX – Roblox Studio place file (exclusively XML) RBXM – Roblox Studio model file (XML, binary) RBXMX – Roblox Studio model file (exclusively XML) RPM – Red Hat package/installer for Fedora, RHEL, and similar systems. SB – Scratch 1.x file SB2 – Scratch 2.0 file SB3 – Scratch 3.0 file SEN – Scifer Archive (.sen) – Scifer Internal Archive Type SF2 – Polyphone Soundfont 2 SF3 – Polyphone Soundfont 3 SF4 – Polyphone Soundfont 4 SITX – SIT StuffIt (Macintosh ) SIS, SISX – SIS /SISX : Symbian Application Package SKB – Google SketchUp backup File SQ – SQ: Squish Compressed Archive SRT – SubRip Subtitle – file format for closed captioning or subtitles. SWM – Splitted WIM File, usually found on OEM Recovery Partition to store preinstalled Windows image, and to make Recovery backup (to USB Drive) easier (due to FAT32 limitations) SZS – Nintendo Yaz0 Compressed Archive TAR – TAR : group of files, packaged as one file GZIP, TAR.GZ – (Gzip, .tar.gz): TGZ gzipped tar file TB – TB Tabbery Virtual Desktop Tab file TIB – TIB Acronis True Image backup UHA – Ultra High Archive Compression UUE – UUE unified utility engine – the generic and default format for all things UUe-related. UF2 Microsoft makecode arcade game. VIV – Archive format used to compress data for several video games, including Need For Speed: High Stakes . VOL – video game data package. VSA – Altiris Virtual Software Archive WAX – Wavexpress – A ZIP alternative optimized for packages containing video, allowing multiple packaged files to be all-or-none delivered with near-instantaneous unpacking via NTFS file system manipulation. WAV , WAVE – a format for storing uncompressed audio files. WFP – a Wondershare Filmora project file WIM – WIM A compressed disk image for installing Windows Vista or higher, Windows Fundamentals for Legacy PC , or restoring a system image made from Backup and Restore (Windows Vista /7 ) XAP – Windows Phone Application Package XZ – xz compressed files, based on LZMA/LZMA2 algorithm Z – Unix compress file ZOO – zoo : based on LZW ZIP – zip : popular compression format ZIM – ZIM : an open file format that stores wiki content for offline usage ISO – Generic format for most optical media, including CD-ROM , DVD-ROM , Blu-ray , HD DVD and UMD . NRG – Proprietary optical media archive format used by Nero applications. IMG – Raw disk image, for archiving DOS formatted floppy disks , hard drives, and larger optical media. ADF – for archiving Amiga floppy disks ADZ – The GZip-compressed version of ADF. DMS – a disk-archiving system native to the Amiga. DSK – For archiving floppy disks from a number of other platforms, including the ZX Spectrum and Amstrad CPC . D64 – An archive of a Commodore 64 floppy disk. SDI – used for archiving and providing "virtual disk" functionality. MDS – Daemon Tools native disc image format used for making images from optical CD-ROM, DVD-ROM, HD DVD or Blu-ray. It comes together with MDF file and can be mounted with DAEMON Tools. MDX – Daemon Tools format that allows getting one MDX disc image file instead of two (MDF and MDS). DMG – Macintosh disk image files CDI – DiscJuggler image file CUE – CDRWrite CUE image file CIF – Easy CD Creator .cif format C2D – Roxio-WinOnCD .c2d format DAA – PowerISO .daa format B6T – BlindWrite 6 image file B5T – BlindWrite 5 image file BWT – BlindWrite 4 image file FFPPKG – FreeFire Profile Export Package LemonOS/LemonTabOS/LemonRoid LEMONAPP – LemonOS/LemonTabOS/LemonRoid App (.lem_app) Other extensions
Computer-aided design
Computer-aided is a prefix for several categories of tools (e.g., design, manufacture, engineering) which assist professionals in their respective fields (e.g., machining , architecture , schematics ).
Computer-aided design (CAD) Computer-aided design (CAD) software assists engineers, architects and other design professionals in project design.
3DXML – Dassault Systemes graphic representation 3MF – Microsoft 3D Manufacturing Format ACP – VA Software VA – Virtual Architecture CAD file AMF – Additive Manufacturing File Format AEC – DataCAD drawing format AEDT – Ansys Electronic Desktop – Project file AR – Ashlar-Vellum Argon – 3D Modeling ART – ArtCAM model ASC – BRL-CAD Geometry File (old ASCII format) ASM – Solidedge Assembly, Pro/ENGINEER Assembly BIN, BIM – Data Design System DDS-CAD BREP – Open CASCADE 3D model (shape) C3D – C3D Toolkit File Format C3P – Construct3 Files CCC – CopyCAD Curves CCM – CopyCAD Model CCS – CopyCAD Session CAD – CadStd CATDrawing – CATIA V5 Drawing document CATPart – CATIA V5 Part document CATProduct – CATIA V5 Assembly document CATProcess – CATIA V5 Manufacturing document cgr – CATIA V5 graphic representation file CKD – KeyCreator CAD parts, assemblies, and drawings CKT – KeyCreator template file CO – Ashlar-Vellum Cobalt – parametric drafting and 3D modeling DAB – AppliCad 3D model CAD file DRW – Caddie Early version of Caddie drawing – Prior to Caddie changing to DWG DFT – Solidedge Draft DGN – MicroStation design file DGK – Delcam Geometry DMT – Delcam Machining Triangles DXF – ASCII Drawing Interchange file format , AutoCAD DWB – VariCAD drawing file DWF – Autodesk's Web Design Format; AutoCAD & Revit can publish to this format; similar in concept to PDF files; Autodesk Design Review is the reader DWG – Popular file format for Computer Aided Drafting applications, notably AutoCAD , Open Design Alliance applications, and Autodesk Inventor Drawing files EASM – SolidWorks eDrawings assembly file EDRW – eDrawings drawing file EMB – Wilcom ES Designer Embroidery CAD file EPRT – eDrawings part file EscPcb – "esCAD pcb" data file by Electro-System (Japan) EscSch – "esCAD sch" data file by Electro-System (Japan) ESW – AGTEK format EXCELLON – Excellon file EXP – Drawing Express format F3D – Autodesk Fusion 360 archive file FCStd – Native file format of FreeCAD CAD /CAM package FM – FeatureCAM Part File FMZ – FormZ Project file G – BRL-CAD Geometry File GBR – Gerber file GLM – KernelCAD model GRB – T-FLEX CAD File GRI – AppliCad GRIM-In file in readable text form for importing roof and wall cladding job data generated by business management and accounting systems into the modelling/estimating program GRO – AppliCad GRIM-Out file in readable text form for exporting roof and wall cladding data job material and labour costing data, material lists generated by the modelling/estimating program to business management and accounting systems IAM – Autodesk Inventor Assembly file ICD – IronCAD 2D CAD file IDW – Autodesk Inventor Drawing file IFC – buildingSMART for sharing AEC and FM data IGES – Initial Graphics Exchange Specification .dgn, .cel – Intergraph Standard File Formats Intergraph IO – Stud.io 3D model IPN – Autodesk Inventor Presentation file IPT – Autodesk Inventor Part file JT – Jupiter Tesselation MCD – Monu-CAD (Monument/Headstone Drawing file) MDG – Model of Digital Geometric Kernel model – CATIA V4 part document OCD – Orienteering Computer Aided Design (OCAD) file PAR – Solidedge Part PIPE – PIPE-FLO Professional Piping system design file PLN – ArchiCad project PRT – NX (recently known as Unigraphics), Pro/ENGINEER Part, CADKEY Part PSM – Solidedge Sheet PSMODEL – PowerSHAPE Model PWI – PowerINSPECT File PYT – Pythagoras File SKP – SketchUp Model RLF – ArtCAM Relief RVM – AVEVA PDMS 3D Review model RVT – Autodesk Revit project files RFA – Autodesk Revit family files RXF – AppliCad annotated 3D roof and wall geometry data in readable text form used to exchange 3D model geometry with other systems such as truss design software S12 – Spirit file, by Softtech SCAD – OpenSCAD 3D part model SCDOC – SpaceClaim 3D Part/Assembly SKP – Sketchup SLDASM – SolidWorks Assembly drawing SLDDRW – SolidWorks 2D drawing SLDPRT – SolidWorks 3D part model dotXSI – For Softimage state – A file used by the IaC tool to record information about what has been deployed by the tool. STEP – Standard for the Exchange of Product model data STL – Stereo Lithographic data format used by various CAD systems and stereo lithographic printing machines. STD – Power Vision Plus – Electricity Meter Data (Circuitor) TCT – TurboCAD drawing template TCW – TurboCAD for Windows 2D and 3D drawing UNV – I-DEAS I-DEAS (Integrated Design and Engineering Analysis Software) VC6 – Ashlar-Vellum Graphite – 2D and 3D drafting VLM – Ashlar-Vellum Vellum, Vellum 2D, Vellum Draft, Vellum 3D, DrawingBoard VS – Ashlar-Vellum Vellum Solids WRL – Similar to STL, but includes color. Used by various CAD systems and 3D printing rapid prototyping machines. Also used for VRML models on the web. X_B – Parasolids binary format X_T – Parasolids XE – Ashlar-Vellum Xenon – for associative 3D modeling ZOFZPROJ – ZofzPCB 3D PCB model, containing mesh, netlist and BOM Electronic design automation (EDA) Electronic design automation (EDA), or electronic computer-aided design (ECAD), is specific to the field of electrical engineering.
BRD – Board file for EAGLE Layout Editor , a commercial PCB design tool BSDL – Description language for testing through JTAG CDL – Transistor -level netlist format for IC design CPF – Power-domain specification in system-on-a-chip (SoC) implementation (see also UPF ) DEF – Gate -level layout Detailed Standard Parasitic Format – Detailed Standard Parasitic Format, Analog -level Parastic component of interconnections in IC design EDIF – Vendor neutral gate -level netlist format FSDB – Analog waveform format (see also Waveform viewer ) GDSII – Format for PCB and layout of integrated circuits HEX – ASCII -coded binary format for memory dumps LEF – Library Exchange Format, physical abstract of cells for IC design Liberty (EDA) – Library modeling (function , timing) format MS12 – NI Multisim file OASIS – Open Artwork System Interchange Standard OpenAccess – Design database format with APIs PSF – Cadence proprietary format to store simulation results/waveforms (2GB limit) PSFXL – Cadence proprietary format to store simulation results/waveforms SDC – Synopsys Design Constraints, format for synthesis constraints SDF – Standard for gate -level timings SPEF – Standard format for Parasitic component of interconnections in IC design SPI, CIR – SPICE Netlist, device-level netlist and commands for simulation SREC , S19 – S-record, ASCII -coded format for memory dumps SST2 – Cadence proprietary format to store mixed-signal simulation results/waveforms STIL – Standard Test Interface Language, IEEE1450-1999 standard for Test Patterns for IC SV – SystemVerilog source file S*P – Touchstone /EEsof Scattering parameter data file – multi-port blackbox performance, measurement or simulated TLF – Contains timing and logical information about a collection of cells (circuit elements ) UPF – Standard for Power-domain specification in SoC implementation V – Verilog source file VCD – Standard format for digital simulation waveform VHD, VHDL – VHDL source file WGL – Waveform Generation Language, format for Test Patterns for IC Test technology Files output from Automatic Test Equipment or post-processed from such.
Database
4DB – 4D database Structure file 4DC – 4D database Structure file (compiled in legacy mode) 4DD – 4D database Data file 4DIndy – 4D database Structure Index file 4DIndx – 4D database Data Index file 4DR – 4D database Data resource file (in old 4D versions) 4DZ – 4D database Structure file (compiled in 4D Project mode) ACCDB – Microsoft Database (Microsoft Office Access 2007 and later) ACCDE – Compiled Microsoft Database (Microsoft Office Access 2007 and later) ADT – Sybase Advantage Database Server (ADS) APR – Lotus Approach data entry & reports BOX – Lotus Notes Post Office mail routing database CHML – Krasbit Technologies Encrypted database file for 1 click integration between contact management software and the Chameleon Software DAF – Digital Anchor data file DAT – DOS Basic DAT – Intersystems Caché database file DB – Paradox DB – SQLite DBF – db/dbase II,III,IV and V, Clipper, Harbour/xHarbour, Fox/FoxPro, Oracle DTA – Sage Sterling database file EGT – EGT Universal Document, used to compress sql databases to smaller files, may contain original EGT database style. ESS – EGT SmartSense is a database of files and its compression style. Specific to EGT SmartSense EAP – Enterprise Architect Project FDB – Firebird Databases FDB – Navision database file FP, FP3, FP5, FP7 – FileMaker Pro FRM – MySQL table definition GDB – Borland InterBase Databases GTABLE – Google Drive Fusion Table KEXI – Kexi database file (SQLite -based) KEXIC – shortcut to a database connection for a Kexi databases on a server KEXIS – shortcut to a Kexi database LDB – Temporary database file, only existing when database is open LIRS – L ayered I ntager S torage. Stores intageres with characters such as semicolons to create lists of data. MDA – Add-in file for Microsoft Access MDB – Microsoft Access database ADP – Microsoft Access project (used for accessing databases on a server) MDE – Compiled Microsoft Database (Access) MDF – Microsoft SQL Server Database MYD – MySQL MyISAM table data MYI – MySQL MyISAM table index NCF – Lotus Notes configuration file NSF – Lotus Notes database NTF – Lotus Notes database design template NV2 – QW Page NewViews object oriented accounting database ODB – LibreOffice Base or OpenOffice Base database ORA – Oracle tablespace files sometimes get this extension (also used for configuration files) PCONTACT – WinIM Contact file PDB – Palm OS Database PDI – Portable Database Image PDX – Corel Paradox database management PRC – Palm OS resource database SQL – bundled SQL queries REC – GNU recutils database REL – Sage Retrieve 4GL data file RIN – Sage Retrieve 4GL index file SDB – StarOffice 's StarBase SDF – SQL Compact Database file sqlite – SQLite UDL – Universal Data Link waData – Wakanda (software) database Data file waIndx – Wakanda (software) database Index file waModel – Wakanda (software) database Model file waJournal – Wakanda (software) database Journal file WDB – Microsoft Works Database WMDB – Windows Media Database file – The CurrentDatabase_360.wmdb
file can contain file name, file properties, music, video, photo and playlist information. Big Data (Distributed)
Avro – Data format appropriate for ingestion of record based attributes. Distinguishing characteristic is schema is stored on each row enabling schema evolution. Parquet – Columnar data storage. It is typically used within the Hadoop ecosystem. ORC – Similar to Parquet, but has better data compression and schema evolution handling. Desktop publishing
AI – Adobe Illustrator AVE, ZAVE – Aquafadas CDR – CorelDRAW CHP, pub, STY, CAP, CIF, VGR, FRM – Ventura Publisher – Xerox (DOS / GEM) CPT – Corel Photo-Paint DTP – Greenstreet Publisher, GST PressWorks FM – Adobe FrameMaker GDRAW – Google Drive Drawing ILDOC – Broadvision Quicksilver document INDD – Adobe InDesign MCF – FotoInsight Designer PDF – Adobe Acrobat or Adobe Reader PMD – Adobe PageMaker PPP – Serif PagePlus PSD – Adobe Photoshop PUB – Microsoft Publisher QXD – QuarkXPress SLA, SCD – Scribus XCF – XCF : File format used by the GIMP , as well as other programs Document Financial records Font file General purpose These file formats allow for the rapid creation of new binary file formats.
IFDS – Incredibly Flexible Data Storage file format. File extension and the magic number does not have to be IFDS. 3DT – 3D Topicscape , the database in which the meta-data of a 3D Topicscape is held, it is a form of 3D concept map (like a 3D mind-map) used to organize ideas, information, and computer files ATY – 3D Topicscape file, produced when an association type is exported; used to permit round-trip (export Topicscape, change files and folders as desired, re-import to 3D Topicscape) CAG (file format) – Linear Reference System FES (file format) – 3D Topicscape file, produced when a fileless occurrence in 3D Topicscape is exported to Windows. Used to permit round-trip (export Topicscape, change files and folders as desired, re-import them to 3D Topicscape) MGMF – MindGenius Mind Mapping Software file format MM – FreeMind mind map file (XML) MMP (file format) – Mind Manager mind map file TPC (file format) – 3D Topicscape file, produced when an inter-Topicscape topic link file is exported to Windows; used to permit round-trip (export Topicscape, change files and folders as desired, re-import to 3D Topicscape) Graphics Color palettes ACT – Adobe Color Table. Contains a raw color palette and consists of 256 24-bit RGB colour values. ASE – Adobe Swatch Exchange. Used by Adobe Substance, Photoshop, Illustrator, and InDesign. GPL – GIMP palette file. Uses a text representation of color names and RGB values. Various open source graphical editors can read this format, including GIMP , Inkscape , Krita , KolourPaint , Scribus , CinePaint , and MyPaint . PAL – Microsoft RIFF palette file Color management ICC, ICM – Color profile conforming the specification of the ICC . Raster graphics Raster or bitmap files store images as a group of pixels .
ART – America Online proprietary format BLP – Blizzard Entertainment proprietary texture format BMP – Microsoft Windows Bitmap formatted image BTI – Nintendo proprietary texture format CD5 – Chasys Draw IES image CIT – Intergraph is a monochrome bitmap format CPT – Corel PHOTO-PAINT image CR2 – Canon camera raw format; photos have this on some Canon cameras if the quality RAW is selected in camera settings CLIP – CLIP STUDIO PAINT format CPL – Windows control panel file DDS – DirectX texture file DIB – Device-Independent Bitmap graphic DjVu – DjVu for scanned documents EGT – EGT Universal Document, used in EGT SmartSense to compress PNG files to yet a smaller file Exif – Exchangeable image file format (Exif) is a specification for the image format used by digital cameras GIF – CompuServe 's Graphics Interchange Format GRF – Zebra Technologies proprietary format ICNS – format for icons in macOS . Contains bitmap images at multiple resolutions and bitdepths with alpha channel . ICO – a format used for icons in Microsoft Windows . Contains small bitmap images at multiple resolutions and bitdepths with 1-bit transparency or alpha channel. .iff, .ilbm, .lbm – IFF ILBM JNG – a single-frame MNG using JPEG compression and possibly an alpha channel JPEG , JFIF, .jpg, .jpeg – Joint Photographic Experts Group; a lossy image format widely used to display photographic images JP2 – JPEG2000 JPS – JPEG Stereo JXL – JPEG XL , an image format designed for professional photography and web images; supports wide color gamut, high dynamic range, animations, and a max resolution of 1,073,741,823 x 1,073,741,824 KRA – Krita image file LBM – Deluxe Paint image file MAX – ScanSoft PaperPort document MIFF – ImageMagick 's native file format MNG – Multiple-image Network Graphics , the animated version of PNG MSP – a format used by old versions of Microsoft Paint; replaced by BMP in Microsoft Windows 3.0 NEF – Nikon camera raw format; photos have this on some Nikon cameras if the quality RAW is selected in camera settings NITF – A U.S. Government standard commonly used in Intelligence systems OTB – Over The Air bitmap, a specification designed by Nokia for black and white images for mobile phones PBM – Portable bitmap PC1 – Low resolution, compressed Degas picture file PC2 – Medium resolution, compressed Degas picture file PC3 – High resolution, compressed Degas picture file PCF – Pixel Coordination Format PCX – a lossless format used by ZSoft's PC Paint, popular for a time on DOS systems. PDD – Adobe PhotoDeluxe image PDN – Paint.NET image file PGF – Progressive Graphics File PGM – Portable graymap PI1 – Low resolution, uncompressed Degas picture file PI2 – Medium resolution, uncompressed Degas picture file; also Portrait Innovations encrypted image format PI3 – High resolution, uncompressed Degas picture file PICT , PCT – Apple Macintosh PICT image PNG – Portable Network Graphic (lossless, recommended for display and edition of graphic images) PNM – Portable anymap graphic bitmap image PNS – PNG Stereo PPM – Portable Pixmap (Pixel Map) image .procreate – Procreate ’s drawing file PSB – Adobe Photoshop Big image file (for large files) PSD – Adobe Photoshop Document PSP – Paint Shop Pro image PX – Pixel image editor image file PXM – Pixelmator image file PXR – Pixar Image Computer image file QFX – QuickLink Fax image RAW – General term for minimally processed image data (acquired by a digital camera ) RLE – a run-length encoding image SCT – Scitex Continuous Tone image file SGI, RGB, INT, BW – Silicon Graphics Image TGA , .tga, .targa, .icb, .vda, .vst, .pix – Truevision TGA (Targa) image TIFF , .tif, .tiff – Tag(ged) Image File Format; usually lossless, but many variants exist, including lossy ones. TIFF/EP , .tif, .tiff – Tag Image File Format / Electronic Photography, ISO 12234-2; tends to be used as a basis for other formats rather than in its own right. VTF – Valve Texture Format WEBP – WebP , an image format designed for the web that can provide both lossless and lossy compression. XBM – X Window System Bitmap XCF – GIMP image (from Gimp's origin at the eXperimental Computing Facility of the University of California ) XPM – X Window System Pixmap ZIF – Zoomable/Zoomify Image Format (a web-friendly, TIFF-based, zoomable image format)
Vector graphics Vector graphics use geometric primitives such as points, lines, curves, and polygons to represent images.
3DV file – 3-D wireframe graphics by Oscar Garcia AMF – Additive Manufacturing File Format AWG – Ability Draw AI – Adobe Illustrator Document CGM – Computer Graphics Metafile, an ISO Standard CDR – CorelDRAW Document CMX – CorelDRAW vector image DP – Drawing Program file for PERQ DRAWIO – Diagrams.net offline diagram DXF – ASCII Drawing Interchange file Format, used in AutoCAD and other CAD-programs E2D – 2-dimensional vector graphics used by the editor which is included in JFire EGT – EGT Universal Document, EGT Vector Draw images are used to draw vector to a website EPS – Encapsulated Postscript FS – FlexiPro file.x GBR – Gerber file ODG – OpenDocument Drawing MOVIE.BYU – 3D Vector file for polygons, coordinates and more complex shapes RenderMan – Displays Shading in both 2D and 3D scapes SVG – Scalable Vector Graphics, employs XML 3DMLW – Scene description languages (3D vector image formats) STL – STL : Stereo Lithographic data format (see STL (file format) ) used by various CAD systems and stereo lithographic printing machines. See above. .wrl – Virtual Reality Modeling Language, VRML Uses this extension for the creation of 3D viewable web images. X3D – XML based file for communicating 3D graphics SXD – OpenOffice.org XML (obsolete) Drawing TGAX – Texture format used by Zwift V2D – voucher design used by the voucher management included in JFire VDOC – Vector format used in AnyCut, CutStorm, DrawCut, DragonCut, FutureDRAW, MasterCut, SignMaster, VinylMaster software by Future Corporation VSD – Vector format used by Microsoft Visio VSDX – Vector format used by MS Visio and opened by VSDX Annotator VND – Vision numeric Drawing file used in TypeEdit, Gravostyle. WMF – WMF : Windows Meta File EMF – EMF : Enhanced (Windows) MetaFile, an extension to WMF ART – Xara –Drawing (superseded by XAR) XAR – Xara –Drawing 3D graphics 3D graphics are 3D models that allow building models in real-time or non-real-time 3D rendering.
Links and shortcuts Mathematical Object code, executable files, shared and dynamically linked libraries 8BF – files plugins for some photo editing programs including Adobe Photoshop , Paint Shop Pro , GIMP and Helicon Filter . .a – a static library on Unix-like systems .a – Objective C native static library a.out – (no suffix for executable image, .o for object files, .so for shared object files) classic Unix object format, now often superseded by ELF APK – Android Package APP – A folder found on macOS systems containing program code and resources, appearing as one file. .app, APP – file extension are executable application packages for running apps on HarmonyOS , OpenHarmony and HarmonyOS NEXT devices. BAC – an executable image for the RSTS/E system, created using the BASIC-PLUS COMPILE
command BPL – a Win32 PE file created with Delphi or C++Builder containing a package. Bundle – a Macintosh plugin created with Xcode or make which holds executable code, data files, and folders for that code. .class – Compiled Java bytecode COFF – (no suffix for executable image, .o for object files) Unix Common Object File Format, now often superseded by ELF COM – Simple executable format used by CP/M and DOS . DCU – Delphi compiled unit DLL – Dynamic library used in Windows and OS/2 to store data, resources and code. DOL – the format used by the GameCube and Wii , short for Dolphin, which was the codename of the GameCube. .EAR – archives of Java enterprise applications ELF – (no suffix for executable image, .o for object files, .so for shared object files) used in many modern Unix and Unix-like systems, including Solaris , other System V Release 4 derivatives, Linux , and BSD ) .exe – DOS executable (.exe : used in DOS ) .EXE – New Executable (used in multitasking ("European") MS-DOS 4.0, 16-bit Microsoft Windows , and OS/2 ) .EXE – Portable Executable used in Microsoft Windows and some other systems .ipa, .IPA – file extension for apple IOS application executable file. Another form of zip file. .JAR – archives of Java class files JEFF – a file format allowing execution directly from static memory .ko – Loadable kernel module LIB – a static library on Microsoft platforms LIST – variable list Mach-O – (no suffix for executable image, .o for object files, .dylib and .bundle for shared object files) Mach -based systems, notably native format of macOS , iOS , watchOS , and tvOS .NLM – NetWare Loadable Module the native 32-bit binaries compiled for Novell's NetWare Operating System (versions 3 and newer) .o – un-linked object files directly from the compiler OBJ – object file on Windows RLL – used in Microsoft operating systems together with a DLL file to store program resources .s1es – Executable used for S1ES learning system. .so – shared library, typically ELF .VAP – Value Added Process the native 16-bit binaries compiled for Novell's NetWare Operating System (version 2, NetWare 286, Advanced NetWare, etc.) WAR, .WAR – .WAR are archives of Java Web applications .XAP – Windows Phone package XBE – XBE is Xbox executable XCOFF – (no suffix for executable image, .o for object files, .a for shared object files) extended COFF, used in AIX XEX – XEX is Xbox 360 executable .XPI – PKZIP archive that can be run by Mozilla web browsers to install software. Object extensions:
.OCX – .OCX are Object Control extensions .TLB – .TLB are Windows Type Library .VBX – .VBX are Visual Basic extensions Page description language DVI – DVI are Device independent format .egt – Universal Document can be used to store CSS type styles PLD – PLD are PhotoLine Document files PCL – PCL Manages printer language PDF – PDF are Portable Document Format .ps, .ps, .gz – PostScript [clarification needed ] Presentation Project management software Reference management software Formats of files used for bibliographic information (citation ) management.
Scientific data (data exchange) .fits – FITS (Flexible Image Transport System) standard data format for astronomy Silo – Silo , a storage format for visualization developed at Lawrence Livermore National Laboratory SPC – SPC , spectroscopic data EAS3 – binary format for structured data EOSSA – Electro-Optic Space Situational Awareness format OST – (Open Spatio-Temporal) extensible, mainly images with related data, or just pure data; meant as an open alternative for microscope images CCP4 – CCP4 , X-ray crystallography voxels (electron density) MRC – MRC , voxels in cryo-electron microscopy HITRAN – spectroscopic data with one optical/infrared transition per line in the ASCII file (.hit) .root – hierarchical platform-independent compressed binary format used by ROOT SDF – Simple Data Format (SDF) , a platform-independent, precision-preserving binary data I/O format capable of handling large, multi-dimensional arrays. MYD – Everfine LEDSpec software file for LED measurements CSDM – (Core Scientific Dataset Model) model for multi-dimensional and correlated datasets from various spectroscopies, diffraction, microscopy, and imaging techniques (.csdf, .csdfe). Multi-domain Meteorology GRIB – Grid in Binary, WMO format for weather model data BUFR – WMO format for weather observation data PP – UK Met Office format for weather model data NASA-Ames – Simple text format for observation data. First used in aircraft studies of the atmosphere. Chemistry Mathematics Biology Molecular biology and bioinformatics:
AB1 – In DNA sequencing , chromatogram files used by instruments from Applied Biosystems ACE – A sequence assembly format ASN.1 – Abstract Syntax Notation One , is an International Standards Organization (ISO ) data representation format used to achieve interoperability between platforms. NCBI uses ASN.1 for the storage and retrieval of data such as nucleotide and protein sequences, structures, genomes, and PubMed records. BAM – Binary Alignment/Map format (compressed SAM format) BCF – Binary compressed VCF format BED – The browser extensible display format is used for describing genes and other features of DNA sequences CAF – Common Assembly Format for sequence assembly CRAM – compressed file format for storing biological sequences aligned to a reference sequence DDBJ – The flatfile format used by the DDBJ to represent database records for nucleotide and peptide sequences from DDBJ databases. EMBL – The flatfile format used by the EMBL to represent database records for nucleotide and peptide sequences from EMBL databases. FASTA – The FASTA format , for sequence data. Sometimes also given as FNA or FAA (Fasta Nucleic Acid or Fasta Amino Acid). FASTQ – The FASTQ format , for sequence data with quality. Sometimes also given as QUAL. GCPROJ – The Genome Compiler project. Advanced format for genetic data to be designed, shared and visualized. GenBank – The flatfile format used by the NCBI to represent database records for nucleotide and peptide sequences from the GenBank and RefSeq databases GFF – The General feature format is used to describe genes and other features of DNA , RNA , and protein sequences GTF – The Gene transfer format is used to hold information about gene structure MAF – The Multiple Alignment Format stores multiple alignments for whole-genome to whole-genome comparisons [1] NCBI – Structured ASN.1 format used at National Center for Biotechnology Information for DNA and protein data NEXUS – The Nexus file encodes mixed information about genetic sequence data in a block structured format NeXML – XML format for phylogenetic trees NWK – The Newick tree format is a way of representing graph-theoretical trees with edge lengths using parentheses and commas and useful to hold phylogenetic trees . PDB – structures of biomolecules deposited in Protein Data Bank , also used to exchange protein and nucleic acid structures PHD – Phred output, from the base-calling software Phred PLN – Protein Line Notation used in proteax software specification SAM – SAM , Sequence Alignment Map format, in which the results of the 1000 Genomes Project will be released SBML – The Systems Biology Markup Language is used to store biochemical network computational models SCF – Staden chromatogram files used to store data from DNA sequencing SFF – Standard Flowgram Format SRA – format used by the National Center for Biotechnology Information Short Read Archive to store high-throughput DNA sequence data Stockholm – The Stockholm format for representing multiple sequence alignments Swiss-Prot – The flatfile format used to represent database records for protein sequences from the Swiss-Prot database VCF – Variant Call Format , a standard created by the 1000 Genomes Project that lists and annotates the entire collection of human variants (with the exception of approximately 1.6 million variants). Biomedical imaging .dcm – Digital Imaging and Communications in Medicine (DICOM) NIfTI – Neuroimaging Informatics Technology Initiative .nii – single-file (combined data and meta-data) style .nii.gz – gzip -compressed, used transparently by some software, notably the FMRIB Software Library (FSL) .gii – single-file (combined data and meta-data) style; NIfTI offspring for brain surface data .img, .hdr – dual-file (separate data and meta-data, respectively) style .BRIK, .HEAD – AFNI data, meta-data .MGH – uncompressed, Massachusetts General Hospital imaging format, used by the FreeSurfer brain analysis package .MGZ – zip -compressed, Massachusetts General Hospital imaging format, used by the FreeSurfer brain analysis package .img, .hdr – Analyze data, meta-data MINC – Medical Imaging NetCDF format .mnc – previously based on NetCDF; since version 2.0, based on HDF5 Biomedical signals (time series) ACQ – AcqKnowledge format for Windows/PC from Biopac Systems Inc., Goleta, CA, USA ADICHT – LabChart format from ADInstruments Pty Ltd, Bella Vista NSW, Australia BCI2000 – The BCI2000 project, Albany, NY, USA BDF – BioSemi data format from BioSemi B.V. Amsterdam, Netherlands BKR – The EEG data format developed at the University of Technology Graz, Austria CFWB – Chart Data Format from ADInstruments Pty Ltd, Bella Vista NSW, Australia DICOM – Waveform An extension of Dicom for storing waveform data ecgML – A markup language for electrocardiogram data acquisition and analysis EDF, EDF+ – European Data Format FEF – File Exchange Format for Vital signs, CEN TS 14271 GDF – The General Data Format for biomedical signals HL7aECG – Health Level 7 v3 annotated ECG MFER – Medical waveform Format Encoding Rules OpenXDF – Open Exchange Data Format from Neurotronics, Inc., Gainesville, FL, USA SCP-ECG – Standard Communication Protocol for Computer assisted electrocardiography EN1064:2007 SIGIF – A digital SIGnal Interchange Format with application in neurophysiology WFDB – Format of Physiobank XDF – eXtensible Data Format HL7 – Health Level 7 , a framework for exchange, integration, sharing, and retrieval of health information electronically xDT – a family of data exchange formats for medical records CBF – Common Biometric Format, based on CBEFF 2.0 (Common Biometric ExFramework). EBF – Extended Biometric Format, based on CBF but with S/MIME encryption support and semantic extensions CBFX – XML Common Biometric Format, based upon XCBF 1.1 (OASIS XML Common Biometric Format) EBFX – XML Extended Biometric Format, based on CBFX but with W3C XML Encryption support and semantic extensions Programming languages and scripts Security Authentication and general encryption formats are listed here.
Certificates and keys Encrypted files This section shows file formats for encrypted general data, rather than a specific program's data.
AXX – Encrypted file, created with AxCrypt EEA – An encrypted CAB, ostensibly for protecting email attachments TC – Virtual encrypted disk container, created by TrueCrypt KODE – Encrypted file, created with KodeFile nSignE – An encrypted private key, created by nSign Password files Password files (sometimes called keychain files) contain lists of other passwords, usually encrypted.
BPW – Encrypted password file created by Bitser password manager KDB – KeePass 1 database KDBX – KeePass 2 database Signal data (non-audio) ACQ – AcqKnowledge format for Windows/PC from Biopac ADICHT – LabChart format from ADInstruments BKR – The EEG data format developed at the University of Technology Graz BDF, CFG – Configuration file for Comtrade data CFWB – Chart Data format from ADInstruments DAT – Raw data file for Comtrade data EDF – European data format FEF – File Exchange Format for Vital signs GDF – General data formats for biomedical signals GMS – Gesture And Motion Signal format IROCK – intelliRock Sensor Data File Format MFER – Medical waveform Format Encoding Rules SAC – Seismic Analysis Code, earthquake seismology data format SCP-ECG – Standard Communication Protocol for Computer assisted electrocardiography SEED, MSEED – Standard for the Exchange of Earthquake Data, seismological data and sensor metadata SEGY – Reflection seismology data format SIGIF – SIGnal Interchange Format WIN, WIN32 – NIED/ERI seismic data format (.cnt) Sound and music Uncompressed Compressed Sheet music files ABC – ABC Notation sheet music file DARMS – DARMS File Format also known as the Ford-Columbia Format ETF – Enigma Transportation Format abandoned sheet music exchange format GP – Guitar Pro sheet music and tablature file KERN – Kern File Format sheet music file LY – LilyPond sheet music file MEI – Music Encoding Initiative file format that attempts to encode all musical notations MIDI – MIDI file format that is a music sheet for instruments MUS, MUSX – Finale sheet music file MXL, XML – MusicXML standard sheet music exchange format MSCX, MSCZ – MuseScore sheet music file SMDL – Standard Music Description Language sheet music file SIB – Sibelius sheet music file Audio editing and music production ALS – Ableton Live set ALC – Ableton Live clip ALP – Ableton Live pack ATMOS, AUDIO, METADATA – Dolby Atmos Rendering and Mastering related file AUP – Audacity project file AUP3 – Audacity 3.0 project file BAND – GarageBand project file CEL – Adobe Audition loop file (C ool E dit L oop) CAU – Caustic project file CPR – Steinberg Cubase project file CWP – Cakewalk Sonar project file DRM – Steinberg Cubase drum file DWP – DirectWave Sampler Instrument file (mainly used for FL Studio Mobile ) DMKIT – Image-Line 's Drumaxx drum kit file ENS – Native Instruments Reaktor Ensemble FLM – Image Line FL Studio Mobile project file FLP – Image Line FL Studio project file GRIR – Native Instruments Komplete Guitar Rig Impulse Response LOGIC – Logic Pro X project file MMP – LMMS project file (alternatively MMPZ for compressed formats) MMR – MAGIX Music Maker project file MX6HS – Mixcraft 6 Home Studio project file NPR – Steinberg Nuendo project file OMF, OMFI – Open Media Framework Interchange OMFI succeeds OMF (Open Media Framework) PTX – Pro Tools 10 or later project file PTF – Pro Tools 7 up to Pro Tools 9 project file PTS – Legacy Pro Tools project file RIN – Soundways RIN-M file containing sound recording participant credits and song information RPP, RPP-BAK – REAPER project file REAPEAKS – REAPER peak (waveform cache) file SES – Adobe Audition multitrack session file SFK – Sound Forge waveform cache file SFL – Sound Forge sound file SNG – MIDI sequence file (MidiSoft, Korg , etc.) or n-Track Studio project file STF – StudioFactory project file. It contains all necessary patches, samples, tracks and settings to play the file SND – Akai MPC sound file SYN – SynFactory project file. It contains all necessary patches, samples, tracks and settings to play the file UST – Utau Editor sequence excluding wave -file VCLS – VocaListener project file VPR – Vocaloid 5 Editor sequence excluding wave -file VSQ – Vocaloid 2 Editor sequence excluding wave -file VSQX – Vocaloid 3 & 4 Editor sequence excluding wave -file 🗿 – ThirtyDollar Project file SEQUENCE – Online Sequencer project file Source code for computer programs ADA, ADB, 2.ADA – Ada (body) source ADS, 1.ADA – Ada (specification) source ASM, S – Assembly language source BAS – BASIC , FreeBASIC , Visual Basic , BASIC-PLUS source, PICAXE basic BB – Blitz Basic Blitz3D BMX – Blitz Basic BlitzMax C – C source CLJ – Clojure source code CLS – Visual Basic class COB, CBL – COBOL source CPP, CC, CXX, C, CBP – C++ source CS – C# source CSPROJ – C# project (Visual Studio .NET) D – D source DBA – DarkBASIC source DBPro123 – DarkBASIC Professional project E – Eiffel source EFS – EGT Forever Source File EGT – EGT Asterisk Source File, could be J, C#, VB.net, EF 2.0 (EGT Forever) EL – Emacs Lisp source FOR, FTN, F, F77, F90 – Fortran source FRM – Visual Basic form FRX – Visual Basic form stash file (binary form file) FTH – Forth source GED – Game Maker Extension Editable file as of version 7.0 GM6 – Game Maker Editable file as of version 6.x GMD – Game Maker Editable file up to version 5.x GMK – Game Maker Editable file as of version 7.0 GML – Game Maker Language script file GO – Go source H – C/C++ header file HPP, HXX – C++ header file HS – Haskell source HX – Haxe source I – SWIG interface file INC – Turbo Pascal included source JAVA – Java source JS – Javascript source L – lex source LGT – Logtalk source LISP – Common Lisp source M – Objective-C source M – MATLAB M – Mathematica MAP – CodeWarrior linker file M4 – m4 source ML – Standard ML and OCaml source MSQR – M² source file, created by Mattia Marziali N – Nemerle source NB – Nuclear Basic source P – Parser source PAS, PP, P – Pascal source (DPR for projects) PHP, PHP3, PHP4, PHP5, PHPS, Phtml – PHP source PIV – Pivot stickfigure animator PL, PM – Perl PLI, PL1 – PL/I PRG – Ashton-Tate; dbII, dbIII and dbIV, db, db7, clipper, Microsoft Fox and FoxPro, harbour, xharbour, and Xbase PRO – IDL POL – Apcera Policy Language doclet PY – Python source R – R source raku, rakumod, rakudoc, rakutest, nqp – Raku Language RED – Red source REDS – Red/System source RB – Ruby source RESX – Resource file for .NET applications RC, RC2 – Resource script files to generate resources for .NET applications RKT, RKTL – Racket source RS – Rust source Resources – Visual Studio Code S – CodeWarrior / PowerPC ASM SCALA – Scala source SCI, SCE – Scilab SCM – Scheme source SD7 – Seed7 source SKB, SKC – Sage Retrieve 4GL Common Area (Main and Amended backup) SKD – Sage Retrieve 4GL Database SKF, SKG – Sage Retrieve 4GL File Layouts (Main and Amended backup) SKI – Sage Retrieve 4GL Instructions SKK – Sage Retrieve 4GL Report Generator SKM – Sage Retrieve 4GL Menu SKO – Sage Retrieve 4GL Program SKP, SKQ – Sage Retrieve 4GL Print Layouts (Main and Amended backup) SKS, SKT – Sage Retrieve 4GL Screen Layouts (Main and Amended backup) SKZ – Sage Retrieve 4GL Security File SLN – Visual Studio solution SPIN – Spin source (for Parallax Propeller microcontrollers) STK – Stickfigure file for Pivot stickfigure animator SWG – SWIG source code TCL – Tcl source code VAP – Visual Studio Analyzer project VB – Visual Basic.NET source VBG – Visual Studio compatible project group VBP, VIP – Visual Basic project VBPROJ – Visual Basic .NET project VCPROJ – Visual C++ project VDPROJ – Visual Studio deployment project X – Kamek linker file XPL – XProc script/pipeline XQ – XQuery file XSL – XSLT stylesheet Y – yacc source Spreadsheet Tabulated data Video AAF – mostly intended to hold edit decisions and rendering information, but can also contain compressed media essence 3GP – the most common video format for cell phones GIF – Animated GIF (simple animation; until recently often avoided because of patent problems) ASF – container (enables any form of compression to be used; MPEG-4 is common; video in ASF-containers is also called Windows Media Video (WMV)) AVCHD – Advanced Video Codec High Definition AVI – container (a shell, which enables any form of compression to be used) .bik – BIK Bink Video file. A video compression system developed by RAD Game Tools BRAW – a video format used by Blackmagic's Ursa Mini Pro 12K cameras. CAM – aMSN webcam log file COLLAB – Blackboard Collaborate session recording DAT – video standard data file (automatically created when we attempted to burn as video file on the CD) DVR-MS – Windows XP Media Center Edition 's Windows Media Center recorded television format FLV – Flash video (encoded to run in a flash animation) MPEG-1 – M1V Video MPEG-2 – M2V Video NOA – rare movie format use in some Japanese eroges around 2002 FLA – Adobe Flash (for producing) FLR – (text file which contains scripts extracted from SWF by a free ActionScript decompiler named FLARE ) SOL – Adobe Flash shared object ("Flash cookie ") STR – Sony PlayStation video stream M4V – video container file format developed by Apple .mkv – Matroska Matroska is a container format, which enables any video format such as MPEG-4 ASP or AVC to be used along with other content such as subtitles and detailed meta information WRAP – MediaForge (*.wrap) MNG – mainly simple animation containing PNG and JPEG objects, often somewhat more complex than animated GIF .mov – QuickTime container which enables any form of compression to be used; Sorenson codec is the most common; QTCH is the filetype for cached video and audio streams .mpeg, .mpg, .mpe – MPEG THP – Nintendo proprietary movie/video format MPEG-4 – MPEG-4 Part 14 , shortened "MP4 " multimedia container (most often used for Sony's PlayStation Portable and Apple's iPod ) MXF – Material Exchange Format (standardized wrapper format for audio/visual material developed by SMPTE ) ROQ – used by Quake III Arena NSV – NSV Nullsoft Streaming Video (media container designed for streaming video content over the Internet) Ogg – container, multimedia RM – RealMedia SVI – SVI Samsung video format for portable players SMI – SMI SAMI Caption file (HTML like subtitle for movie files) .smk – SMK Smacker video file. A video compression system developed by RAD Game Tools SWF – Adobe Flash (for viewing) .TORRENT – A file that does not hold the video, but simply where the video is located (Can also be used to store the location of a software or audio) WMV – Windows Media Video (See ASF) WTV – Windows Vista 's and up Windows Media Center recorded television format YUV – raw video format; resolution (horizontal x vertical) and sample structure 4:2:2 or 4:2:0 must be known explicitly WebM – video file format for web video using HTML5 Video editing, production Video game data List of common file formats of data for video games on systems that support filesystems, most commonly PC games.
Minecraft files used by Mojang to develop Minecraft
MCADDON – format used by the Bedrock Edition of Minecraft for add-ons; Resource packs for the game MCFUNCTION – format used by Minecraft for storing functions/scripts MCMETA – format used by Minecraft for storing data for customizable texture packs for the game MCPACK – format used by the Bedrock Edition of Minecraft for in-game texture packs; full addons for the game MCR – format used by Minecraft for storing data for in-game worlds before version 1.2 MCTEMPLATE – format used by the Bedrock Edition of Minecraft for world templates MCWORLD – format used by the Bedrock Edition of Minecraft for in-game worlds NBS – format used by Note Block Studio, a tool that can be used to make note block songs for Minecraft . EPK – format used by Eaglercraft , a fan-made version of Minecraft that can be played in browsers, for saving world data TrackMania/Maniaplanet Engine Formats used by games based on the TrackMania engine.
GBX – All user-created content is stored in this file type. REPLAY.GBX – Stores the replay of a race. CHALLENGE.GBX, MAP.GBX – Stores tracks/maps. SYSTEMCONFIG.GBX – Launcher info. TRACKMANIAVEHICLE.GBX – Info about a certain car type. VEHICLETUNINGS.GBX – Vehicle physics. SOLID.GBX – A block's model. ITEM.GBX – Custom Maniaplanet item. BLOCK.GBX – Custom Maniaplanet block. TEXTURE.GBX – Info about a texture that are used in materials. MATERIAL.GBX – Info about a material such as surface type that are used in Solids. TMEDCLASSIC.GBX – Block info. GHOST.GBX – Player ghosts in Trackmania and TrackMania Turbo . CONTROLSTYLE.GBX – Menu files. SCORES.GBX – Stores info about the player's best times. PROFILE.GBX – Stores a player's info such as their login. DDS – Almost every texture in the game uses this format. PAK – Stores environment data such as valid blocks. LOC – A locator. Locators allow the game to download content such as car skins from an external server. SCRIPT.TXT – Scripts for Maniaplanet such as menus and game modes. XML – ManiaLinks. Formats used by games based on the Doom engine.
DEH – DeHackEd files to mutate the game executable (not officially part of the DOOM engine) DSG – Saved game LMP – A lump is an entry in a DOOM wad. LMP – Saved demo recording MUS – Music file (usually contained within a WAD file) WAD – Data storage (contains music, maps, and textures) Formats used by games based on the Quake engine.
BSP – BSP : (For Binary space partitioning ) compiled map format MAP – MAP : Raw map format used by editors like GtkRadiant or QuArK MDL, MD2, MD3, MD5 – MDL/MD2 /MD3 /MD5 : Model for an item used in the game PAK, PK2 – PAK /PK2 : Data storage PK3, PK4 – PK3 /PK4 : used by the Quake II , Quake III Arena and Quake 4 game engines, respectively, to store game data, textures etc. They are actually .zip files. .dat – not specific file type, often generic extension for "data" files for a variety of applications, sometimes used for general data contained within the .PK3/PK4 files .fontdat – a .dat file used for formatting game fonts .roq – Video format .sav – Savegame/Savefile format Formats used by games based on the Unreal engine.
U – Unreal script format UAX – Animations format for Unreal Engine 2 UMX – Map format for Unreal Tournament UMX – Music format for Unreal Engine 1 UNR – Map format for Unreal UPK – Package format for cooked content in Unreal Engine 3 USX – Sound format for Unreal Engine 1 and Unreal Engine 2 UT2 – Map format for Unreal Tournament 2003 and Unreal Tournament 2004 UT3 – Map format for Unreal Tournament 3 UTX – Texture format for Unreal Engine 1 and Unreal Engine 2 UXX – Cache format; these are files a client downloaded from server (which can be converted to regular formats) Formats used by games based on this engine
DMO – Save game GRP – Data storage MAP – Map (usually constructed with BUILD.EXE ) Diablo Engine Formats used by Diablo by Blizzard Entertainment.
SV – Save Game ITM – Item File Formats used by Bohemia Interactive . Operation:Flashpoint , ARMA 2 , VBS2
SQF – Format used for general editing SQM – Format used for mission files PBO – Binarized file used for compiled models LIP – Format that is created from WAV files to create in-game accurate lip-sync for character animations. Roblox studio engine RBXL – Roblox Studio place file (XML, binary) RBXM – Roblox Studio model file (XML, binary) RBXLX – Roblox Studio place file (exclusively XML) RBXMX – Roblox Studio model file (exclusively XML)
Formats used by Valve . Half-Life 2 , Counter-Strike: Source , Day of Defeat: Source , Half-Life 2: Episode One , Team Fortress 2 , Half-Life 2: Episode Two , Portal , Left 4 Dead , Left 4 Dead 2 , Alien Swarm , Portal 2 , Counter-Strike: Global Offensive , Titanfall , Insurgency , Titanfall 2 , Day of Infamy
BSP – Source Engine compiled map file DEM – Source Engine demo format HL2 – Half-Life 2 save format MDL – Source Engine model format PCF – Source Engine particle effect file SAV – Source Engine save format SMD – Source Engine uncompiled model format VMF – Valve Hammer Map editor raw map file VMT – Source Engine material format. VMX – Valve Hammer Map editor backup map file VPK – Source Engine pack format VTF – Source Engine texture format Pokemon generation V CGB – Pokemon Black and White/Pokemon Black 2 and White 2 C-Gear skins. ARC – used to store New Super Mario Bros. Wii level data B – used for Grand Theft Auto saved game files BOL – used for levels on Poing!PC DBPF – The Sims 2 , DBPF, Package DIVA – Project DIVA timings, element coördinates, MP3 references, notes, animation poses and scores. ESM, ESP – Master and Plugin data archives for the Creation Engine HAMBU – format used by the Aidan's Funhouse game RGTW for storing map data HE0, HE2, HE4 – HE games File GCF – format used by the Steam content management system for file archives IMG – format used by Renderware -based Grand Theft Auto games for data storage LOVE – format used by the LOVE2D Engine MAP – format used by Halo: Combat Evolved for archive compression, Doom³, and various other games MCA – format used by Minecraft for storing data for in-game worlds NBT – format used by Minecraft for storing program variables along with their (Java) type identifiers OEC – format used by OE-Cake for scene data storage OSB – osu! storyboard data OSC – osu!stream combined stream data OSF2 – free osu!stream song file OSR – osu! replay data OSU – osu! beatmap data OSZ2 – paid osu!stream song file P3D – format for panda3d by Disney PLAGUEINC – format used by Plague Inc. for storing custom scenario information POD – format used by Terminal Reality RCT – Used for templates and save files in RollerCoaster Tycoon games REP – used by Blizzard Entertainment for scenario replays in StarCraft . Simcity, DBPF, .dat, .SC4Lot, .SC4Model – All game plugins use this format, commonly with different file extensions (Simcity 4 ) SMZIP – ZIP-based package for StepMania songs, themes and announcer packs. SOLITAIRETHEME8 – A solitaire theme for Windows solitaire USLD – format used by Unison Shift to store level layouts. VVVVVV – format used by VVVVVV CPS – format used by The Powder Toy , Powder Toy save STM – format used by The Powder Toy , Powder Toy stamp PKG – format used by Bungie for the PC Beta of Destiny 2 , for nearly all the game's assets. CHR – format used by Team Salvato , for the character files of Doki Doki Literature Club! Z5 – format used by Z-machine for story files in interactive fiction. scworld – format used by Survivalcraft to store sandbox worlds. scskin – format used by Survivalcraft to store player skins. scbtex – format used by Survivalcraft to store block textures. prison – format used by Prison Architect to save prisons escape – format used by Prison Architect to save escape attempts WBFS – (Wii Backup File System) .GBA – Game Boy Advance ROM File .pss – Sony PlayStation 2 Game Video file and is used to store audio and video data by games for the PlayStation 2 console. List of the most common filename extensions used when a game's ROM image or storage medium is copied from an original read-only memory (ROM) device to an external memory such as hard disk for back up purposes or for making the game playable with an emulator . In the case of cartridge-based software, if the platform specific extension is not used then filename extensions ".rom" or ".bin" are usually used to clarify that the file contains a copy of a content of a ROM. ROM, disk or tape images usually do not consist of one file or ROM, rather an entire file or ROM structure contained within one file on the backup medium.
.a26 – Atari 2600 .a52 – Atari 5200 .a78 – Atari 7800 .lnx – Atari Lynx .jag, .j64 – an Atari Jaguar game from a Rom Cartridge .iso, .wbfs, .wad, .wdf – a Wii and WiiU disk/game .gcm, .iso – a GameCube disk/game .min – a Pokemon mini rom/game .nds – a Nintendo DS game from a Rom Cartridge .dsi – Nintendo DSiWare .3ds – Nintendo 3DS .cia – Nintendo 3DS Installation File (for installing games with the use of the FBI homebrew application) .gb – Game Boy (this applies to the original Game Boy and the Game Boy Color ) .gbc – Game Boy Color .gba – a Game Boy Advance Game from a Rom Cartridge .sav – Game Boy Advance Saved Data Files .sgm – Visual Boy Advance Save States .n64, .v64, .z64, .u64, .usa, .jap, .pal, .eur, .bin – Nintendo 64 .pj – Project 64 Save States .nes – Nintendo Entertainment System .fds – Famicom Disk System .jst – Jnes Save States .fc# – FCEUX Save States (.fc#, where # is any character, usually a number) .gg – Game Gear .sms – Master System .sg – SG-1000 .smd, .bin – Mega Drive/Genesis .32x – Sega 32X .smc, .078, .sfc – Super NES (.078 is for split ROMs, which are rare) .fig – Super Famicom (Japanese releases are rarely .fig, above extensions are more common) .srm – Super NES Saved Data Files .zst, .zs1-.zs9, .z10-.z99 – ZSNES Save States (.zst, .zs1-.zs9, .z10-.z99) .frz, .000-.008 – Snes9X Save States .pce – TurboGrafx-16/PC Engine .npc, .ngp – Neo Geo Pocket .ngc – Neo Geo Pocket Color .vb – Virtual Boy .int – Intellivision .min – Pokémon Mini .vec – Vectrex .bin – Odyssey² .ws – WonderSwan .wsc – WonderSwan Color .tzx – ZX Spectrum (for exact copies of ZX Spectrum games) TAP – for tape images without copy protection Z80, SNA – (for snapshots of the emulator RAM) DSK – (for disk images) .tap – Commodore 64 (.tap) (for tape images including copy protection) T64 – (for tape images without copy protection, considerably smaller than .tap files) D64 – (for disk images) CRT – (for cartridge images) .adf – Amiga (.adf) (for 880K diskette images) ADZ – GZip -compressed version of the above. DMS – Disk Masher System , previously used as a disk-archiving system native to the Amiga, also supported by emulators. .pss – A Sony PlayStation 2 Game Video file and is used to store audio and video data by games for the PlayStation 2 console. .nsp – Nintendo switch. Virtual machines .vfd – Virtual Floppy Disk .vhd – Virtual Hard Disk .vud – Virtual Undo Disk .vmc – Virtual Machine Configuration .vsv – Virtual Machine Saved State .log – Virtual Machine Logfile .vmdk , .dsk – Virtual Machine Disk .nvram – Virtual Machine BIOS .vmem – Virtual Machine paging file .vmsd – Virtual Machine snapshot metadata .vmsn – Virtual Machine snapshot .vmss, .std – Virtual Machine suspended state .vmtm – Virtual Machine team data .vmx, .cfg – Virtual Machine configuration .vmxf – Virtual Machine team configuration .vbox – VirtualBox machine .vdi – VirtualBox virtual disk image .vbox-extpack – VirtualBox extension pack .hdd – Virtual Machine hard disk .pvs – Virtual Machine preferences/configuration .sav – Virtual Machine saved state .cow – Copy-on-write .qcow – QEMU copy-on-write .qcow2 – QEMU copy-on-write – version 2 .qed – QEMU enhanced disk format Web page Static
DTD – Document Type Definition (standard), MUST be public and free .html, .htm – HTML HyperText Markup Language .xhtml, .xht – XHTML eXtensible HyperText Markup Language .mht, .mhtml – MHTML Archived HTML, store all data on one web page (text, images, etc.) in one big file .maff – MAF web archive based on ZIP Dynamically generated
.asp – ASP Microsoft Active Server Page .aspx – ASPX Microsoft Active Server Page. NET .adp – ADP AOLserver Dynamic Page .bml – BML Better Markup Language (templating) .cfm – CFM ColdFusion .cgi – CGI .ihtml – iHTML Inline HTML .jsp – JSP JavaServer Pages .las, .lasso, .lassoapp – Lasso , A file created or served with the Lasso Programming Language .pl – Perl .php, .php?, .phtml – PHP ? is version number (previously abbreviated Personal Home Page , later changed to PHP: Hypertext Preprocessor ) .shtml – SSI HTML with Server Side Includes (Apache) .stm – SSI HTML with Server Side Includes (Apache) .atom, .xml – Atom Another syndication format. .eml – EML Format used by several desktop email clients. .jsonld – JSON-LD A JSON-based serialization for linked data . .kprx – KPRX A XML-based serialization for workflow definition generated by K2. .ps – PS A XML-based serialization for test automation scripts called PowerScripts for K2 based applications. .metalink, .met – Metalink A format to list metadata about downloads, such as mirrors, checksums, and other information. .rss, .xml – RSS Syndication format. .markdown, .md – Markdown Plain text formatting syntax, which is popularly used to format "readme " files. .se – Shuttle Another lightweight markup language. Other AXD – cookie extensions found in temporary internet folder APK – Android Package Kit BDF – Binary Data Format – raw data from recovered blocks of unallocated space on a hard drive CBP – CD Box Labeler Pro, CentraBuilder, Code::Blocks Project File, Conlab Project CEX – SolidWorks Enterprise PDM Vault File COL – Nintendo GameCube proprietary collision file (.col) CREDX – CredX Dat File DDB – Generating code for Vocaloid singers voice (see .DDI) DDI – Vocaloid phoneme library (Japanese, English, Korean, Spanish, Chinese, Catalan) DUPX – DuupeCheck database management tool project file FTM – Family Tree Maker data file FTMB – Family Tree Maker backup file GA3 – Graphical Analysis 3 .ged – GEDCOM (GEnealogical Data COMmunication) format to exchange genealogy data between different genealogy software HLP – Windows or CP/M help file IGC – flight tracks downloaded from GPS devices in the FAI's prescribed format INF – similar format to INI file ; used to install device drivers under Windows, inter alia. JAM – JAM Message Base Format for BBSes KMC – tests made with KatzReview's MegaCrammer KCL – Nintendo GameCube /Wii proprietary collision file (.kcl) KTR – Hitachi Vantara Pentaho Data Integration/Kettle Transformation Project file LNK – Microsoft Windows format for Hyperlinks to Executables LSM – LSMaker script file (program using layered .jpg to create special effects; specifically designed to render lightsabers from the Star Wars universe) (.lsm) MCR – a macro recording file for Super Macro software (.mcr) MELSAVE – Melon Playground build save file MELMOD – Melon Playground mod file NARC – archive format used in Nintendo DS games OER – AU OER Tool, Open Educational Resource editor PA – Used to assign sound effects to materials in KCL files (.pa) PIF – Used to run MS-DOS programs under Windows POR – So called "portable" SPSS files, readable by PSPP PXZ – Compressed file to exchange media elements with PSALMO RISE – File containing RISE generated information model evolution SCR – Windows Screen Saver file TOPC – TopicCrunch SEO Project file holding keywords, domain, and search engine settings (ASCII) XLF – Utah State University Extensible LADAR Format XMC – Assisted contact lists format, based on XML and used in kindergartens and schools ZED – My Heritage Family Tree zone – Zone file a text file containing a DNS zone FX – Microsoft DirectX plain text effects and properties for the associated file and are used to specify the textures, shading, rendering, lighting and other 3D effects (.fx) MIFRAMES – Mine-imator keyframes file (.miframes) MILANGUAGE – Mine-Imator language data file (.milanguage) MIDATA – Mine-Imator data file (.midata) BCA – Short for Burst Cutting Area Holds the information of the circular area near the center of a DVD, HD DVD or Blu-ray Disc, it is usually 64 bytes in size. (.bca) Cursors ANI – Animated cursor CUR – Cursor file Smes – Hawk's Dock configuration file Generalized files These file formats are fairly well defined by long-term use or a general standard, but the content of each file is often highly specific to particular software or has been extended by further standards for specific uses.
Text-based Generic file extensions These are filename extensions and broad types reused frequently with differing formats or no specific format by different programs.
Binary files .bak, .bk – Bak file various backup formats: some just copies of data files, some in application-specific data backup formats, some formats for general file backup programs BIN – binary data, often memory dumps of executable code or data to be re-used by the same software that originated it DAT – data file, usually binary data proprietary to the program that created it, or an MPEG-1 stream of Video CD DSK – file representations of various disk storage images RAW – raw (unprocessed) data SZH – files that are associated with zero unique file types (the most prevalent being the Binary Data format) Text files .cnf, .conf, .cfg – configuration file substantially software-specific .log – logfiles usually text, but sometimes binary .asc, .text, .txt – human-readable plain text , usually no more specific Partial files Differences and patches diff – text file differences created by the program diff and applied as updates by patch Incomplete transfers Temporary files .temp, .tmp – Temporary file sometimes in a specific format, but often just raw data in the middle of processing Pseudo-pipelines, Pseudo-pipeline – Pseudo-pipeline file used to simulate a software pipe Hacking game files .verity – Used to change game account data. See also References