List of file formats

From Wikipedia, the free encyclopedia

This is a list of file formats organized by type, seen on computers. Filename extensions are usually noted in parentheses if they differ from the format name or abbreviation.

Archive and compressed

Main article: List of archive formats

The most common compression files to the standard user are .zip and .rar. However, there are many more.

• .?Q? - files compressed by the SQ program.
• 7z 7-Zip compressed file
• ace
• ALZ - Alzip format
• ARC
• ARJ
• big Special file compression format used by Electronic Arts for compressing the data for many of EA's games
• bzip2 (.bz2)
• cab - Microsoft Cabinet
• deb - Debian Linux install package
• DMG - an Apple compressed/encrypted format
• EEA - An encrypted CAB, ostensibly for protecting e-mail attachments
• gzip (.gz) - Compressed file
• jar - ZIP file with manifest for use with Java applications.
• LBR - Library file
• LQR - LBR Library file compressed by the SQ program.
• LHA (.lzh)
• lzo
• lzx
• PAK - Enhanced type of .ARC archive
• Parchive (.par, .par2)
• Doom³ archive (.pk4) (Opens similarly to a zip archive.)
• RAR Rar Archive (.rar), for multiple file archive (rar to .r01-.r99 to s01 and so on)
• sit - StuffIt (Macintosh)
• sit - (Macintosh)
• tar
• .tar.gz, .tgz (gzipped tar file)
• uha (Ultra High Archive Compression)
• UIF
• zoo
• zip

Computer-aided

Computer-aided is a prefix for several categories of tools (ie. design, manufacture, engineering) which assist professionals in their respective fields (ie. machining, architecture, schematics).

Computer-aided design (CAD)

Computer-aided design (CAD) software assists engineers, architects and other design professionals in project design.

• CAD - CadStd
• DWG - AutoCAD and Open Design Alliance applications
• DGN - MicroStation design file
• DXF - ASCII Drawing Interchange file format
• GERBER, or Gerber file
• ICD - IronCAD 2D CAD file
• EXCELLON, or Excellon file
• IGES
• Intergraph's Intergraph Standard File Formats
• Industry Foundation Classes for sharing AEC and FM data.
• Softimage's dotXSI
• STL Stereo Lithographic data format (see [1]) used by various CAD systems and stereo lithographic printing machines.

Electronic design automation (EDA)

Electronic design automation (EDA), or electronic computer-aided design (ECAD), is specific to the field of electrical engineering.

• GDSII
• OASIS, Open Artwork System Interchange Standard
• OpenAccess
• SPICE netlist format (see SPICE, netlist)
• LEF/DEF
• Intel HEX

Database

• ACCDB - Microsoft Access Database Format
• DB - Paradox
• DBF - DBase, DBase III/IV/V, Microsoft FoxPro
• EAP - Enterprise Architect Project
• FDB - Firebird Databases
• FP? - Filemaker
• FRM - MySQL table definition
• GDB - Borland InterBase Databases
• KEXI - Kexi database file (SQLite-based)
• KEXIC - shortcut to a database connection for a Kexi databases on a server
• MDB - Microsoft Database (Access)
• MDE - Compiled Microsoft Database (Access)
• MFD - Microsoft SQL Server Database
• MYD - MySQL MyISAM table data
• MYI - MySQL MyISAM table index
• NSF - Lotus Notes database
• NTF - Lotus Notes database design template
• ODB - OpenDocument database
• SQL - bundled SQL queries
• WDB - Microsoft Works Database

Document

These files store formatted text.

• ABW - AbiWord document
• AFP - Advanced Function Presentation - IBc
• Amigaguide
• ANS - ANSI text with Layout
• ASC - ASCII text with Layout
• AWW - Ability Write
• CWK - ClarisWorks / AppleWorks document
• DOC - Microsoft Word
• DOCX - Microsoft Word 2007 XML based format
• DOT - Microsoft Word Template
• DOTX - Microsoft Word 2007 Template
• HTML - HyperText Markup Language (.html, .htm)
• HWP - Haansoft Hangul Word Processor document
• LWP - Lotus Word Pro
• MCW - Microsoft Word for Macintosh (versions 4.0 - 5.1)
• ODT - OpenDocument Text document
• OTT - OpenDocument text document template
• PAGES - Apple Pages Presentation
• PAP - Papyrus word processor document
• Radix-64
• RTF - Rich Text Format
• SDW - StarWriter text document, used in earlier versions of StarOffice
• STW - StarOffice/OpenOffice.org/NeoOffice text document template
• SXW - StarOffice/OpenOffice.org/NeoOffice text document
• TeX (.tex)
• Texinfo (.info)
• Troff
• TXT - ASCII or Unicode raw text file
• UOML - UniqueObject Markup Language (UOML) is a XML-based markup language; uniqueobject.com
• WPD - WordPerfect document
• WPS - Microsoft Works document
• WPT - Microsoft Works Template
• WRF - ThinkFree Write
• WRI - Microsoft Write
• XHTML (.xhtml, .xht)
• XML - eXtensible Markup Language - broader than just documents - OpenOffice employs XML

Font file

• ABF - Adobe Binary Screen Font
• AFM - Adobe Font Metrics
• BDF - Bitmap Distribution Format
• FON - Bitmapped Font - Microsoft Windows
• MGF - MicroGrafx Font
• OTF - OpenType Font
• PCF - Portable Compiled Font
• PostScript Font - Type 1, Type 2
  • PFA - Printer Font ASCII
  • PFB - Printer Font Binary - Adobe
  • PFM - Printer Font Metrics - Adobe
  • FOND - Font Description resource - Mac OS
• SNF - Server Normal Format
• TFM - TeX font metric
• TTF - TrueType Font

Geographic information system

• APR (ESRI ArcView 3.3 and earlier project file)
• DEM (USGS DEM file format)
• E00 (ARC/INFO interchange file format)
• GeoTIFF (Geographically located raster data)
• GPX (XML-based interchange format)
• MXD (ESRI ArcGIS project file, 8.0 and higher)
• SHP (ESRI shapefile)
• World TIFF (Geographically located raster data: text file giving corner coordinate, raster cells per unit, and rotation)

Graphical information organizers

• 3DT - 3D Topicscape The database in which the meta-data of a 3D Topicscape is held. A 3D Topicscape 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 by 3D Topicscape. Used to permit round-trip (export Topicscape, change files and folders as desired, re-import them to 3D Topicscape).
• FES - 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).
• MMP - Mind Manager mind map file.
• TPC - 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 them to 3D Topicscape).

Graphics

Main article: graphics file formats.

Raster graphics

Raster (or Bitmap) files store images as a group of pixels.

• ACT - Adobe Color Table. Contains a raw color palette and usually consists of 256 24-bit RGB colour values.
• ART - America Online proprietary format
• BMP - Microsoft Windows Bitmap formatted image
• BLP - Blizzard Entertainment proprietary texture format
• CIT - Intergraph is a monochrome bitmap format
• CPT - Corel PHOTO-PAINT image
• CUT - Dr. Halo image file
• DIB - Device-Independent Bitmap graphic
• DjVu - DjVu for scanned documents
• Exif - Exchangeable image file format (Exif) is a specification for the image file format used by digital cameras
• GIF - CompuServe's Graphics Interchange Format
• ICNS - file format use for icons in Mac OS X. Contains bitmap images at multiple resolutions and bitdepths with alpha channel.
• ICO - a file format used for icons in Microsoft Windows. Contains small bitmap images at multiple resolutions and sizes.
• IFF (.iff, .ilbm, .lbm) - ILBM
• JNG - a single-frame MNG using JPEG compression and possibly an alpha channel.
• JPEG, JFIF (.jpg or .jpeg) - a lossy image format widely used to display photographic images.
• JP2 - JPEG2000
• LBM - Deluxe Paint image file
• MAX - ScanSoft PaperPort document
• MIFF - ImageMagick's native file format
• MNG - Multiple Network Graphics, the animated version of PNG
• MSP - a file format used by old versions of Microsoft Paint. Replaced with BMP in Microsoft Windows 3.0
• NITF - A US Government standard commonly used in Intelligence systems
• PBM - Portable bitmap
• PC1 - Low resolution, compressed Degas picture file
• PC2 - Medium resolution, compressed Degas picture file
• PC3 - High resolution, compressed Degas picture file
• PCX - a lossless format used by ZSoft's PC Paint, popular at one time on DOS systems.
• PGM - Portable graymap
• PI1 - Low resolution, uncompressed Degas picture file
• PI2 - Medium resolution, uncompressed Degas picture file
• 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 Any Map graphic bitmap image
• PPM - Portable Pixmap (Pixel Map) image
• PSB - Adobe Photoshop Big image file (for large files)
• PSD, PDD - Adobe Photoshop Drawing
• PSP - Paint Shop Pro image
• 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 encoded 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 or .tiff) Tagged Image File Format (usually lossless, but many variants exist, including lossy ones)
• 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

Vector graphics

Vector graphics use geometrical primitives such as points, lines, curves, and polygons to represent images.

• AWG - Ability Draw
• AI - Adobe Illustrator Document
• EPS - Encapsulated Postscript
• CGM - Computer Graphics Metafile an ISO Standard
• CMX - CorelDRAW vector image
• DXF - ASCII Drawing Interchange file format, used in AutoCAD
• SVG - Scalable Vector Graphics, employs XML
• Scene description languages (3D vector image formats)
  • MOVIE.BYU
  • RenderMan
  • VRML - Virtual Reality Modeling Language
  • X3D
• WMF - Windows MetaFile
• EMF - Enhanced (Windows) MetaFile, an extension to WMF

 

3D graphics

3D graphics are 3D models that allow you to build models in real-time or non real-time 3D rendering.

• MAX,3DS - 3D Studio Max Model (.max, .3ds)
• MA - Alias Maya ASCII File (.ma)
• MB - Alias Maya Binary File (.mb)
• AC - AC3D Model (.ac)
• AN8 - Anim8or Model (.an8)
• AOI - Art of Illusion Model (.aoi)
• B3D - Blitz3D Model (.b3d)
• BLEND - Blender (.blend)
• COB - Caligari Object (.cob)
• DAE - COLLADA (.dae)
• X - DirectX 3D Model (.x)
• DTS - Torque Game Engine (.dts)
• LWO - Lightwave Object (.lwo)
• MESH - Meshwork Model (.mesh)
• OBJ - OBJ (.obj)
• 3DMF - QuickDraw 3D Metafile (.3dmf)
• RWX - RenderWare Object (.rwx)
• SLDASM - SolidWorks Assembly Document (.sldasm)
• SLDPRT - SolidWorks Part Document (.sldprt)
• CFL - Compressed File Library (.cfl)
• WINGS - Wings3D (.wings)
• Z3D - Zmodeler (.z3d)

Object code, executable files, shared and dynamically-linked libraries

• 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)
• .Class files, used in Java
• .COFF (no suffix for executable image, .o for object files) UNIX Common Object File Format, now often superseded by ELF
• COM files, used in DOS
• .DLL; used in Microsoft Windows
• .EAR files, 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)
• MZ EXE (.exe; used in DOS)
• .JAR files, archives of Java class files
• .XPI (which is a PKZIP archive that can be run by Mozilla web browsers to install software) (.xpi)
• 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 Mac OS X)
• PE (.EXE, .DLL; used in Microsoft Windows and some other systems)
• .PEF (Mac OS versions 9 and under; compatible with Mac OS X via the Classic emulator)
• .WAR files, archives of Java Web applications
• .ZXE - Executable that is generated by the Z++ compiler.

Object Extensions

• .VBX - Visual Basic Extensions
• .OCX - Object Control Extensions

• .tlb - Windows Type Library

Page description language

• DVI
• PCL
• PDF
• PostScript (.ps, .ps .gz)
• SNP - Microsoft Access Report Snapshot
• XPS
• XSL-FO (Formatting Objects)

• Configurations, Metadata
  • CSS
  • XSLT,XSL - XML Style Sheet (.xslt, .xsl)
  • TPL - Web template (.tpl)

Presentation

• KEY, KEYNOTE - Apple Keynote Presentation
• ODP - OpenDocument presentation
• OTP - OpenDocument presentation template
• PPS - Microsoft PowerPoint Show
• PPT - Microsoft PowerPoint Presentation
• PRZ - Lotus Freelance Graphics
• SHF - ThinkFree Show
• STI - OpenOffice.org 1.* Presentation template
• SXI - OpenOffice.org 1.* Presentation
• WATCH - Dataton Watchout Presentation

Scientific data formats (data exchange)

• IMG,HDR - Analyze (.img/.hdr)
• CDF - Common Data Format [2]
• FITS Flexible Image Transport format - Standard data format for astronomy [3]
• NetCDF Network common data format [4]
• HDR - Hierarchical Data Format [5]
• SDXF (Structured Data Exchange Format)
• DCM - DICOM format

Chemical/biological file formats

• Details can be found in the chemical file format article.
• Typical examples
  • CML - Chemical Markup Language (CML) (.cml)
  • Chemical table file (CTab) (.mol, .sd, .sdf)
  • Joint Committee on Atomic and Molecular Physical Data (JCAMP) (.dx, .jdx)
  • Simplified molecular input line entry specification (SMILES) (.smi)

Script

• ASL - anim8or scripting language
• AU3 - AutoIt version 3
• BAT - Batch file
• BAS - QBasic
• BB - Blitz3D
• BMAX - BlitzMax
• CMD - Batch file
• EGG - Chicken
• HTA - HTML Application
• ICI - ICI
• JS - JavaScript
• LUA - Lua
• MRC - mIRC Script
• NUT - Squirrel
• PHP - PHP
• PHP? - PHP (? = version number)
• PL - Perl
• PS1 - PowerShell
• PY - Python
• PYC - Python
• PYO - Python
• RB - Ruby
• SCPT - Applescript
• SH - Shell script
• TCL - Tcl
• VBS - Visual Basic Script

Signal data formats (non-audio)

• ACQ - AcqKnowledge File Format for Windows/PC from Biopac
• BKR - The EEG data format developed at the University of Technology Graz
• BDF - BioSemo data format - similar to EDF but 24bit
• CFWB - Chart Data File Format from ADInstruments
• EDF - European data format
• FEF - File Exchange Format for Vital signs
• GDF - General data formats for biomedical signals
• MFER - Medical waveform Format Encoding Rules
• SCP-ECG - Standard Communication Protocol for Computer assisted electrocardiography
• SIGIF- SIGnal Interchange Format
• and many others [6]

Sound and music

Lossless audio

• Uncompressed
  • AIFF
  • AU
  • CDDA
  • IFF-8SVX
  • IFF-16SV
  • RAW (raw samples without any header or sync)
  • WAV - Microsoft Wave
• Compressed
  • FLAC (free lossless codec of the Ogg project)
  • LA - Lossless Audio (.la)
  • PAC - LPAC (.pac)
  • M4A - Apple Lossless (M4A)
  • APE - Monkey's Audio (APE)
  • OptimFROG
  • RKA - RKAU (.rka)
  • SHN - Shorten (SHN)
  • TTA free lossless audio codec (True Audio)
  • WV - WavPack (.wv)
  • WMA - Windows Media Audio 9 Lossless (WMA)

Lossy audio

• MP2 (MPEG Layer 2)
• MP3 (MPEG Layer 3)
• Speex (Ogg project, specialized for voice, low bitrates)
• Vorbis (Ogg project, free and similar in principle to MP3)
• GSM (GSM Full Rate, originally developed for use in mobile phones)
• WMA - Windows Media Audio (.WMA)
• AAC (.m4a, .mp4, .m4p, .aac) - Advanced Audio Coding (usually in an MPEG-4 container)
• MPC - Musepack
• VQF - Yamaha TwinVQ
• RealAudio (RA, RM)
• OTS Audio File (similar to MP3, with more data stored in the file and slightly better compression; designed for use with OtsLabs' OtsDJ)
• SWA - Macromedia Shockwave Audio (Same compression as MP3 with additional header information specific to Macromedia Director - see What is the difference between MP3 and SWA files?)
• VOX - Dialogic ADPCM Low Sample Rate Digitized Voice (VOX)
• VOC - Creative Labs Soundblaster Creative Voice 8-bit & 16-bit (VOC)
• DWD - DiamondWare Digitized (DWD)
• SMP - Turtlebeach SampleVision (SMP)

Other music formats

• CUST - (DeliPlayer custom sound file format)
• MID - (standard MIDI file; most often just notes and controls but occasionally also sample dumps)
• GYM - Genesis YM2612 log
• VGM - (stands for "Video Game Music", log for several different chips)
• PSF - Portable Sound Format
• NSF - (bytecode program to play NES music)
• MOD - (Soundtracker and Protracker sample and melody modules)
• PTB - (Power Tab Editor tab)
• S3M (ScreamTracker 3 module, with a few more effects and a dedicated volume column)
• XM - (Fast Tracker module, adding instrument envelopes)
• IT - (Impulse Tracker module, adding compressed samples, note-release actions, and more effects including a resonant filter)
• MT2 - (MadTracker 2 module. It could be resumed as being XM and IT combined with more features like track effects and automation.)
• MNG - (BGM for the Creatures game series, starting from Creatures 2; a free editor and player is available)
• PSF - PlayStation sound format.
• RMJ - RealJukebox Media used for RealPlayer.
• SPC - Super Nintendo Entertainment System sound file format.
• NIFF
• MusicXML
• YM - (Atari ST/Amstrad CPC YM2149 sound chip format)

Playlist formats

• ASX - Advanced Stream Redirector (.asx)
• M3U
• PLS
• RAM - Real Audio Metafile For Real Audio files only.

Audio Editing & Music Production formats

• CEL - Adobe Audition loop file
• CPR - Steinberg Cubase project file
• CWP - Cakewalk Sonar project file
• DRM - Steinberg Cubase drum file
• OMF - Digital Performer project file
• SES - Adobe Audition multitrack session file
• STF - StudioFactory project file. It contains all necessary patches, samples, tracks and settings to play the file.
• SYN - SynFactory project file. It contains all necessary patches, samples, tracks and settings to play the file.

Source code for computer programs

(see also: Script)

• ASM, S – Assembly Language source
• BAS – BASIC, Visual Basic module
• C – C source
• CLS – Visual Basic class
• COB, CBL – Cobol source
• CPP, CC, CXX – C++ source
• CS – C# source
• D – D source
• E - Eiffel source
• FOR, FTN, F, F77 – Fortran source
• FRM - Visual Basic form
• FRX - Visual Basic form stash file (binary form file)
• H – C/C++ header file
• HPP, HXX – C++ header file
• INC – Turbo Pascal included source
• JAVA – Java source
• L – Lex source
• M - Objective-C source
• M - Matlab
• M4 – m4 source
• ML – Standard ML / Objective CAML source
• N – Nemerle source
• PAS, PP, P – Pascal source (DPR for projects)
• P – Parser source
• PHP, PHP3, PHP4 – PHP source
• PL, PM – Perl
• PY – Python programming language source
• RESX - Resource file for .NET applications
• VB – Visual Basic.NET source
• VBP – Visual Basic project
• Y – YACC source

Spreadsheet

• 123 - Lotus 1-2-3
• AWS - Ability Spreadsheet
• CLF - ThinkFree Calc
• CSV - Comma-Separated Values
• gnumeric - Gnumeric spreadsheet, a gziped XML file
• ODS - OpenDocument spreadsheet
• OTS - OpenDocument spreadsheet template
• QPW - Quattro
• STC - StarOffice/OpenOffice.org 1.* Spreadsheet template
• SXC - StarOffice/OpenOffice.org 1.* Spreadsheet
• TAB - tab delimited columns; also TSV (Tab-Separated Values)
• WK1 - Lotus 1-2-3 up to version 2.01
• WK3 - Lotus 1-2-3 version 3.0
• WK4 - Lotus 1-2-3 version 4.0
• WKS - Lotus 1-2-3
• WKS - Microsoft Works
• WQ1 - Quattro Pro DOS version
• XLK - Microsoft Excel worksheet backup
• XLS - Microsoft Excel worksheet sheet
• XLR - Microsoft Works version 6.0
• XLT - Microsoft Excel worksheet template
• XLW - Microsoft Excel worksheet workspace (version 4.0)

Tabulated data

• tab
• CSV - Comma-separated values
• dif (accessible by many spreadsheet applications)

Video

Main article: video file formats.

• 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 (ASF is a shell, which enables any form of compression to be used; MPEG-4 is common. Video in ASF-containers is also called Windows Media Video (WMV))
• AVI - (AVI is a shell, which enables any form of compression to be used; MPEG-1 and a variant of MPEG-4 are common)
• DSH
• FLV (*.flv) A video file encoded to run in a flash animation.
• M1V MPEG-1 Video file
• M2V MPEG-2 Video file
• SWF - Macromedia Flash (.swf for viewing,
• FLA - Macromedia Flash for producing) (
• MKV - Matroska (*.mkv) (Matroska is a container format, which enables any video format such as MPEG-4 or Xvid 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, a container format, which enables any form of compression to be used; Sorenson codec is the most common)
• MPEG (.mpeg, .mpg, .mpe)

• MPEG-4, shortened "MP4", a popular video format most often used for Sony's PlayStation Portable and Apple's iPod.

• MXF Material Exchange Format is a standardized wrapper format for audio/visual material developed by SMPTE
• NSV Nullsoft Streaming Video is a media container designed for streaming video content over the internet.
• OGM (OGM is a container format created so that Ogg Vorbis could be used for the audio of a video as this could not be done with AVI)
• Tarkin (Ogg project, all Tarkin files are Ogg files)
• Theora (Ogg project, all Theora files are Ogg files)
• RM - RealMedia
• SVI Samsung video format for portable players
• SMI SAMI Caption file. (HTML like subtitle for movie files)
• Xvid

Video Editing & Production formats

• MSWMM - Windows Movie Maker Project file
• PPJ - Adobe Premiere Pro Video Editing File

Video game data

List of common file formats of data for video games on systems that support filesystems, most commonly PC games.

• MAP - format used by Duke Nukem 3D, Doom³ and various other games. (Note- the file type structure may differ between games.)
• MAP - format used by Halo: Combat Evolved for archive compression.
• Simcity 4, DBPF (.dat, .SC4Lot, .SC4Model) (All game plugins use this format, commonly with different file extensions)
• DBPF - The Sims 2, DBPF, Package
• BOL - used for levels on Poing!PC
• UT2K4 - for Unreal Tournament 2004
• WAD - used by DOOM
• PK3 - used by the Quake III game engine and MOHAA to store game data, textures e.t.c.

Video game storage media

List of the most common filename extensions used when a game's ROM image or storage medium is copied from an original 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 a single file or ROM, rather an entire file or ROM structure contained within a single file on the backup medium.

• JAG,J64 - Atari Jaguar (.jag, .j64)
• GB - Game Boy (.gb) (this applies to the original Game Boy and the Game Boy Color)

• GBC - Game Boy Color (.gbc)

• GBA - Game Boy Advance (.gba)

• SAV - Game Boy Advance Saved Data Files (.sav)
• SGM - Visual Boy Advance Save States (.sgm)

• N64,V64 - Nintendo 64 (.n64, .v64)

• PJ - Project 64 Save States (.pj)

• NES - Nintendo Entertainment System (.nes)

• FDS - Famicom Disk System (.fds)
• JST - Jnes Save States (.jst)

• GG - Sega Game Gear (.gg)
• SMS - Sega Master System (.sms)
• SMD,BIN - Sega Mega Drive/Sega Genesis (.smd or .bin)
• SMC,078 - Super NES (.smc, or .078) (.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 (.srm)
• ZST - ZSNES Save States (.zst, .zs1-.zs9)
• FRZ - Snes9X Save States (.frz)

• PCE - TurboGrafx 16/PC Engine (.pce)
• NPC - Neo Geo Pocket (.npc)
• TZX - ZX Spectrum (.tzx) (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)

Virtual Machines

Microsoft Virtual PC/Virtual Server

See [7]

• VFD - Virtual Floppy Disk (.vfd)
• VHD - Virtual Hard Disk (.vhd)
• VUD - Virtual Undo Disk (.vud)
• VMC - Virtual Machine Configuration (.vmc)
• VSV - Virtual Machine Saved State (.vsv)

EMC VMware ESX/GSX/Workstation/Player

See [8]

• LOG - Virtual Machine Logfile (.log)
• VMDK,DSK - Virtual Machine Disk (.vmdk, .dsk)
• NVRAM - Virtual Machine BIOS (.nvram)
• VMEM - Virtual Machine paging file (.vmem)
• VMSD - Virtual Machine snapshot metadata (.vmsd)
• VMSN - Virtual Machine snapshot (.vmsn)
• VMSS,STD - Virtual Machine suspended state (.vmss, .std)
• VMTM - Virtual Machine team data (.vmtm)
• VMX,CFG - Virtual Machine configuration (.vmx, .cfg)
• VMXF - Virtual Machine team configuration (.vmxf)

Parallels Workstation

• HDD - Virtual Machine hard disk (.hdd)
• PVS - Virtual Machine preferences/configuration (.pvs)
• SAV - Virtual Machine saved state (.sav)

Webpage

• Static
  • HTML - (.html, .htm) - HyperText Markup Language
  • XHTML - (.xhtml, .xht) - eXtensible HyperText Markup Language
  • XML - (.xml)
  • MHTML - (.mht, .mhtml) - Archived HTML, store all data on one web page (text, images, etc) in one big file
• Dynamically generated
  • ASP - (.asp) - Microsoft Active Server Page
  • ASPX - (.aspx) - Microsoft Active Server Page. NET
  • ADP - AOLserver Dynamic Page
  • BML - (.bml) - Better Markup Language (templating)
  • CFM - (.cfm) - ColdFusion
  • CGI - (.cgi)
  • JSP - (.jsp) JavaServer Pages
  • Lasso - (.las, .lasso, .lassoapp)
  • PL - Perl (.pl)
  • PHP - (.php, .php?, .phtml) - ? is version number (previously abbreviated Personal Home Page, later changed to PHP: Hypertext Preprocessor)
  • SSI - (.shtml) - HTML with Server Side Includes

XML, markup language and other web standards-based file formats

• EML - (.eml) - File format used by several desktop email clients
• RSS - (.rss, .xml) - Syndication file format
• Atom - (.atom, .xml) - Another syndication file format

Other

• GA3 - Graphical Analysis 3
• AXD - cookie extensions found in temporary internet folder
• KMC - tests made with KatzReview's MegaCrammer
• IGC - flight tracks downloaded from GPS devices in the FAI's prescribed format
• TOPC - TopicCrunch SEO Project file holding keywords, domain and search engine settings (ASCII);
• TMP - Temporary file

See also

• List of file extensions by alphabet
• MIME Content-Type, a standard for extensions and reffering to formats.

External links

• Dot What? Detailed information on file extensions and the programs that use them.

Large list of file extensions: File-extensions.org

• Listings of common filename extensions: FILExt.com (includes MIME types), File extensions database, [9], [10], [11] (scientific computing-related)
• FileInfo.net Searchable database of file extensions.
• Wotsit's collection of file format references for programmers.
• Saugus.net Filename Extensions List Large number of file formats defined.
• File Extensions Reference File formats defined and explained.
• XeNTaX Homepage A packer and unpacker for a massive number of game archive formats, WIKI on site.