File extensions and file formats

1,096 file extensions and 908 file types from the freedesktop.org shared-mime-info database that Linux desktops use to recognise files. All MIME types

Images

.ag Applix Graphics image
.apng Animated PNG image
.arw Sony ARW raw image
.astc ASTC texture
.avif AVIF image
.avifs AVIF image
.bmp Windows BMP image
.cgm CGM image
.cr2 Canon CR2 raw image
.cr3 Canon CR3 raw image
.crw Canon CRW raw image
.cur Windows cursor
.dcr Kodak DCR raw image
.dds DirectDraw surface
.dib Windows BMP image
.djv DjVu image
.djvu DjVu image
.dng Adobe DNG negative
.dwg AutoCAD image
.dxf DXF vector image
.emf EMF image
.eps EPS image
.eps.bz2 EPS image (bzip2-compressed)
.eps.gz EPS image (gzip-compressed)
.epsf EPS image
.epsf.bz2 EPS image (bzip2-compressed)
.epsf.gz EPS image (gzip-compressed)
.epsi EPS image
.epsi.bz2 EPS image (bzip2-compressed)
.epsi.gz EPS image (gzip-compressed)
.exr EXR image
.fig XFig image
.g3 CCITT G3 fax image
.gif GIF image
.gih GIMP brush pipe
.hdp JPEG XR image
.heic HEIF image
.heif HEIF image
.hif HEIF image
.icb TGA image
.icns MacOS X icon
.ico Windows icon
.ief IEF image
.iff ILBM image
.ilbm ILBM image
.j2c JPEG-2000 codestream
.j2k JPEG-2000 codestream
.jfif JPEG image
.jng JNG image
.jp2 JPEG-2000 JP2 image
.jpc JPEG-2000 codestream
.jpe JPEG image
.jpeg JPEG image
.jpf JPEG-2000 JPX image
.jpg JPEG image
.jpg2 JPEG-2000 JP2 image
.jpgm JPEG-2000 JPM image
.jpm JPEG-2000 JPM image
.jxl JPEG XL image
.jxr JPEG XR image
.k25 Kodak K25 raw image
.kdc Kodak KDC raw image
.ktx Khronos texture image
.ktx2 Khronos texture image
.lbm ILBM image
.lwo LightWave object
.lwob LightWave object
.lws LightWave scene
.mdi MDI image
.mrw Minolta MRW raw image
.msod Office drawing
.nef Nikon NEF raw image
.nrw Nikon NRW raw image
.ora OpenRaster image
.orf Olympus ORF raw image
.pat GIMP pattern
.pbm PBM image
.pcd PCD image
.pct Macintosh Quickdraw/PICT drawing
.pcx PCX image
.pef Pentax PEF raw image
.pgm PGM image
.pict Macintosh Quickdraw/PICT drawing
.pict1 Macintosh Quickdraw/PICT drawing
.pict2 Macintosh Quickdraw/PICT drawing
.png Animated PNG image
.pnm PNM image
.pntg MacPaint Bitmap image
.ppm PPM image
.psd Photoshop image
.qoi Quite OK Image Format
.qtif QuickTime image
.raf Fuji RAF raw image
.ras CMU raster image
.raw Panasonic raw image
.rgb RGB image
.rle RLE bitmap image
.rp RealPix document
.rw2 Panasonic raw image
.sgi SGI image
.sk Skencil document
.sk1 Skencil document
.sr2 Sony SR2 raw image
.srf Sony SRF raw image
.sun Sun raster image
.svg SVG image
.svg.gz Compressed SVG image
.svgz Compressed SVG image
.tga TGA image
.tif TIFF image
.tiff TIFF image
.tpic TGA image
.vda TGA image
.wbmp WBMP image
.wdp JPEG XR image
.webp WebP image
.wmf WMF image
.x3f Sigma X3F raw image
.xbm XBM image
.xcf GIMP image
.xcf.bz2 Compressed GIMP image
.xcf.gz Compressed GIMP image
.xpm XPM image
.xwd X window image

Audio

.669 Amiga SoundTracker audio
.aa Audible.Com audio
.aac AAC audio
.aax Audible Enhanced audio
.aaxc Audible Enhanced audio
.ac3 Dolby Digital audio
.adts AAC audio
.aif AIFF/Amiga/Mac audio
.aifc AIFC audio
.aiff AIFF/Amiga/Mac audio
.aiffc AIFC audio
.amr AMR audio
.amz AmazonMP3 download file
.ape Monkey's audio
.ass AAC audio
.asx Microsoft ASX playlist
.au ULAW (Sun) audio
.awb AMR-WB audio
.axa Annodex audio
.dff DSDIFF audio
.dsf DSF audio
.dts DTS audio
.dtshd DTS-HD audio
.f4a MPEG-4 audio
.f4b MPEG-4 audio book
.flac FLAC audio
.gsm GSM 06.10 audio
.it Impulse Tracker audio
.kar MIDI audio
.loas USAC audio
.m15 Amiga SoundTracker audio
.m4a MPEG-4 audio
.m4b MPEG-4 audio book
.m4r MPEG-4 ringtone
.med Amiga SoundTracker audio
.mid MIDI audio
.midi MIDI audio
.minipsf MiniPSF audio
.mka Matroska audio
.mo3 Compressed Tracker audio
.mp+ Musepack audio
.mp2 MP2 audio
.mp3 MP3 audio
.mpc Musepack audio
.mpga MP3 audio
.mpp Musepack audio
.mtm Amiga SoundTracker audio
.mxmf Mobile XMF audio
.oga Ogg audio
.ogg Ogg audio
.opus Ogg audio
.pla iRiver playlist
.pls MP3 ShoutCast playlist
.psflib PSFlib audio library
.psid Commodore 64 audio
.ra RealAudio document
.rax RealAudio document
.s3m Scream Tracker 3 audio
.sid Commodore 64 audio
.snd ULAW (Sun) audio
.stm Scream Tracker audio
.tak TAK audio
.tta TrueAudio audio
.ult Amiga SoundTracker audio
.uni Amiga SoundTracker audio
.vlc Media playlist
.voc VOC audio
.wav WAV audio
.wax Microsoft ASX playlist
.wma Windows Media audio
.wmx Microsoft ASX playlist
.wv WavPack audio
.wvc WavPack audio correction file
.wvp WavPack audio
.wvx Microsoft ASX playlist
.xhe USAC audio
.xi FastTracker II instrument
.xm FastTracker II audio
.xmf XMF audio

Video

.3g2 3GPP2 multimedia file
.3ga 3GPP multimedia file
.3gp 3GPP multimedia file
.3gp2 3GPP2 multimedia file
.3gpp 3GPP multimedia file
.3gpp2 3GPP2 multimedia file
.avf AVI video
.avi AVI video
.axv Annodex video
.bdm MPEG-2 transport stream
.bdmv MPEG-2 transport stream
.bik Bink Video
.bk2 Bink Video
.clpi MPEG-2 transport stream
.cpi MPEG-2 transport stream
.divx AVI video
.dv DV video
.f4v MPEG-4 video
.flc FLIC animation
.fli FLIC animation
.flv Flash video
.fxm JavaFX video
.lrv MPEG-4 video
.m1u Video playlist
.m2t MPEG-2 transport stream
.m2ts MPEG-2 transport stream
.m4u Video playlist
.m4v MPEG-4 video
.mj2 JPEG-2000 MJ2 video
.mjp2 JPEG-2000 MJ2 video
.mjpeg MJPEG video stream
.mjpg MJPEG video stream
.mk3d Matroska 3D video
.mkv Matroska video
.mng MNG animation
.moov QuickTime video
.mov QuickTime video
.movie SGI video
.mp4 MPEG-4 video
.mpe MPEG video
.mpeg MPEG video
.mpg MPEG video
.mpls MPEG-2 transport stream
.mts MPEG-2 transport stream
.mxu Video playlist
.nsv NullSoft video
.ogm OGM video
.ogv Ogg video
.qt QuickTime video
.qtvr QuickTime video
.rv RealVideo document
.rvx RealVideo document
.smk Smacker Video
.viv Vivo video
.vivo Vivo video
.vob MPEG video
.webm WebM video
.wmv Windows Media video
.yt YouTube media archive

Documents & office

.123 Lotus 1-2-3 spreadsheet
.602 T602 document
.abw AbiWord document
.abw.crashed AbiWord document
.abw.gz AbiWord document
.as Applix Spreadsheets spreadsheet
.aw Applix Words document
.cb7 Comic book archive (7z container)
.cbr Comic book archive (rar container)
.cbt Comic book archive (tar container)
.cbz Comic book archive (zip container)
.cdf Unidata NetCDF document
.chm CHM document
.chrt KChart chart
.cwk AppleWorks document
.dbf Xbase document
.dbk DocBook document
.doc Word document
.docbook DocBook document
.docm Word document
.docx Word 2007 document
.dot Word template
.dotm Word document template
.dotx Word 2007 document template
.dvi TeX DVI document
.dvi.bz2 TeX DVI document (bzip2-compressed)
.dvi.gz TeX DVI document (gzip-compressed)
.epub Electronic book document
.ez ATK inset
.fl FLTK Fluid file
.flw Kivio flowchart
.fm Adobe FrameMaker document
.fodp ODP presentation (Flat XML)
.fods ODS spreadsheet (Flat XML)
.fodt ODT document (Flat XML)
.ged GEDCOM family history
.gedcom GEDCOM family history
.glade Glade project
.gnc GnuCash financial data
.gnucash GnuCash financial data
.gnumeric Gnumeric spreadsheet
.gnuplot Gnuplot document
.gp Gnuplot document
.gplt Gnuplot document
.gra Graphite scientific graph
.gv Graphviz DOT graph
.h4 HDF document
.h5 HDF document
.hdf HDF document
.hdf4 HDF document
.hdf5 HDF document
.hwp Haansoft Hangul document
.hwt Haansoft Hangul document template
.ipynb Jupyter notebook document
.jpr JBuilder project
.jpx JBuilder project
.kfo KFormula formula
.kpr KPresenter presentation
.kpt KPresenter presentation
.kra Krita document
.krz Krita document
.ksp KSpread spreadsheet
.kud Kugar document
.kwd KWord document
.kwt KWord document
.lmdb LMDB database
.lwp Lotus Word Pro document
.lyx LyX document
.markdown Markdown document
.md Markdown document
.mdb JET database
.mgp MagicPoint presentation
.mkd Markdown document
.mobi Mobipocket e-book
.mod Object code
.nb Mathematica Notebook file
.nc Unidata NetCDF document
.numbers Apple Numbers spreadsheet
.o Object code
.obj TGIF document
.oda ODA document
.odb ODB database
.odc ODC chart
.odf ODF formula
.odm ODM document
.odp ODP presentation
.ods ODS spreadsheet
.odt ODT document
.oleo GNU Oleo spreadsheet
.otc ODC template
.otf ODF template
.otp ODP template
.ots ODS template
.ott ODT template
.oxps OpenXPS document
.oxt OpenOffice.org extension
.p65 Adobe PageMaker document
.pages Apple Pages document
.pdc AportisDoc document
.pdf PDF document
.pdf.bz2 PDF document (bzip2-compressed)
.pdf.gz PDF document (gzip-compressed)
.pdf.lz PDF document (lzip-compressed)
.pdf.xz PDF document (XZ-compressed)
.pln PlanPerfect spreadsheet
.pm Adobe PageMaker document
.pm6 Adobe PageMaker document
.pmd Adobe PageMaker document
.pot PowerPoint presentation
.potm PowerPoint presentation template
.potx PowerPoint 2007 presentation template
.ppam PowerPoint add-in
.pps PowerPoint presentation
.ppsm PowerPoint presentation
.ppsx PowerPoint 2007 show
.ppt PowerPoint presentation
.pptm PowerPoint presentation
.pptx PowerPoint 2007 presentation
.ppz PowerPoint presentation
.ps PostScript document
.ps.bz2 PostScript document (bzip2-compressed)
.ps.gz PostScript document (gzip-compressed)
.psw Pocket Word document
.pw Pathetic Writer document
.pys Pyspread spreadsheet (bzip2-compressed)
.pysu Pyspread spreadsheet
.qif Quicken document
.qti QtiPlot document
.qti.gz QtiPlot document
.rtf RTF document
.sam Lotus AmiPro document
.sdc StarCalc spreadsheet
.sdd StarImpress presentation
.sds StarChart chart
.sdw StarWriter document
.sgl StarWriter document
.siag Siag spreadsheet
.sldm PowerPoint slide
.sldx PowerPoint 2007 slide
.smf StarMath formula
.stc LibreOffice Calc template
.sti LibreOffice Impress template
.stw LibreOffice Writer template
.sxc LibreOffice Calc spreadsheet
.sxg LibreOffice Writer global document
.sxi LibreOffice Impress presentation
.sxm LibreOffice Math formula
.sxw LibreOffice Writer document
.ui Qt Designer interface document
.vor StarWriter document
.vsd Microsoft Visio document
.vss Microsoft Visio document
.vst Microsoft Visio document
.vsw Microsoft Visio document
.wb1 Quattro Pro spreadsheet
.wb2 Quattro Pro spreadsheet
.wb3 Quattro Pro spreadsheet
.wcm Microsoft Works document
.wdb Microsoft Works document
.wk1 Lotus 1-2-3 spreadsheet
.wk3 Lotus 1-2-3 spreadsheet
.wk4 Lotus 1-2-3 spreadsheet
.wks Lotus 1-2-3 spreadsheet
.wp WordPerfect document
.wp4 WordPerfect document
.wp5 WordPerfect document
.wp6 WordPerfect document
.wpd WordPerfect document
.wpp WordPerfect document
.wps Microsoft Works document
.wri WRI document
.wwf WWF document
.xac GnuCash financial data
.xla Excel spreadsheet
.xlam Excel add-in
.xlc Excel spreadsheet
.xld Excel spreadsheet
.xll Excel spreadsheet
.xlm Excel spreadsheet
.xlr Microsoft Works document
.xls Excel spreadsheet
.xlsb Excel 2007 binary spreadsheet
.xlsm Excel spreadsheet
.xlsx Excel 2007 spreadsheet
.xlt Excel spreadsheet
.xltm Excel spreadsheet template
.xltx Excel 2007 spreadsheet template
.xlw Excel spreadsheet
.xps XPS document
.xul XUL interface document
.zabw AbiWord document

Archives & packages

.7z 7-zip archive
.7z.001 7-zip archive
.a AR archive
.ace ACE archive
.alz Alzip archive
.appinstaller Windows app store installer
.appx Windows app store package
.appxbundle Windows app store bundle
.ar AR archive
.arj ARJ archive
.bcpio BCPIO archive
.bz Bzip1 archive
.bz2 Bzip2 archive
.bz3 Bzip3 archive
.cab Microsoft Cabinet archive
.cpio CPIO archive
.cpio.gz CPIO archive (gzip-compressed)
.crdownload Partially downloaded file
.dar DAR archive
.deb Debian package
.emp eMusic download package
.fb2.zip Compressed FictionBook document
.flatpak Flatpak application bundle
.flatpakref Flatpak repository reference
.flatpakrepo Flatpak repository description
.gem Tar archive
.gtar Tar archive
.gz Gzip archive
.hqx Macintosh BinHex-encoded file
.img.xz Raw disk image (XZ-compressed)
.jar Java archive
.kmz KML geographic compressed data
.lha LHA archive
.lhz LHZ archive
.lrz Lrzip archive
.lz Lzip archive
.lz4 LZ4 archive
.lzh LHA archive
.lzma LZMA archive
.lzo LZO archive
.mrpack Modrinth Modpack
.msi Windows Installer package
.msix Windows app store package
.msixbundle Windows app store bundle
.odg ODG drawing
.odi ODI image
.otg ODG template
.oth OTH template
.ova OVF disk image
.pack Pack200 Java archive
.pak PAK archive
.par2 Parchive archive
.part Partially downloaded file
.pkg XAR archive
.pkpass Apple Wallet pass
.psf.gz Linux PSF console font (gzip-compressed)
.qp Qpress archive
.rar RAR archive
.raw-disk-image.xz Raw disk image (XZ-compressed)
.rpm RPM package
.shar Shell archive
.sis SIS package
.sisx SISX package
.sit StuffIt archive
.sitx StuffIt X archive
.spm Source RPM package
.src.rpm Source RPM package
.std LibreOffice Draw template
.sv4cpio SV4 CPIO archive
.sv4crc SV4 CPIO archive (with CRC)
.sxd LibreOffice Draw drawing
.tar Tar archive
.tar.bz Tar archive (bzip1-compressed)
.tar.bz2 Tar archive (bzip2-compressed)
.tar.bz3 Tar archive (bzip3-compressed)
.tar.gz Tar archive (gzip-compressed)
.tar.lrz Tar archive (lrzip-compressed)
.tar.lz Tar archive (lzip-compressed)
.tar.lz4 Tar archive (LZ4-compressed)
.tar.lzma Tar archive (LZMA-compressed)
.tar.lzo Tar archive (LZO-compressed)
.tar.xz Tar archive (XZ-compressed)
.tar.z Tar archive (compressed)
.tar.zst Tar archive (Zstandard-compressed)
.taz Tar archive (compressed)
.tb2 Tar archive (bzip2-compressed)
.tbz Tar archive (bzip1-compressed)
.tbz2 Tar archive (bzip2-compressed)
.tbz3 Tar archive (bzip3-compressed)
.tgz Tar archive (gzip-compressed)
.theme Theme
.themepack Microsoft Windows theme pack
.thmx Microsoft Office 2007 theme
.tlrz Tar archive (lrzip-compressed)
.tlz Tar archive (LZMA-compressed)
.txz Tar archive (XZ-compressed)
.tzo Tar archive (LZO-compressed)
.tzst Tar archive (Zstandard-compressed)
.udeb Debian package
.ustar Ustar archive
.vsdm Office Open XML Visio drawing
.vsdx Office Open XML Visio drawing
.vssm Office Open XML Visio stencil
.vssx Office Open XML Visio stencil
.vstm Office Open XML Visio template
.vstx Office Open XML Visio template
.wad Doom WAD file
.wkdownload Partially downloaded file
.xar XAR archive
.xdgapp Flatpak application bundle
.xpi XPInstall installer module
.xz XZ archive
.z UNIX-compressed file
.zip Zip archive
.zipx Zip archive
.zoo Zoo archive
.zpaq Zpaq Archive
.zst Zstandard archive
.zz Zlib archive

Text & source code

.adb Ada source code
.ads Ada source code
.al Perl script
.asd Common Lisp source code
.asp ASP page
.automount Systemd unit file
.awk AWK script
.bas BASIC program
.bat DOS/Windows batch file
.bib BibTeX document
.blp Blueprint source code
.brk Protein Data Bank file
.c C++ source code
.c++ C++ source code
.cbl COBOL source code
.cc C++ source code
.ccmx CCMX color correction file
.cl OpenCL source code
.cls TeX document
.cmake CMake source code
.cob COBOL source code
.coffee CoffeeScript document
.cpp C++ source code
.cr Crystal source code
.cs C# source code
.csh C shell script
.css CSS stylesheet
.csv CSV document
.csvs CSV Schema document
.cue CD image cuesheet
.cxx C++ source code
.d D source code
.dart Dart source code
.dcl DCL script
.desktop Desktop entry
.device Systemd unit file
.di D source code
.diff Differences between files
.drl Excellon drill file
.dsl DSSSL document
.dtb Flattened Devicetree
.dtd DTD file
.dtsi Devicetree source code
.dtx TeX document
.e Eiffel source code
.eif Eiffel source code
.el Emacs Lisp source code
.eml Email message
.erl Erlang source code
.es ECMAScript program
.etx Setext document
.ex Elixir source code
.exs Elixir source code
.f Fortran source code
.f90 Fortran source code
.f95 Fortran source code
.fasl Common Lisp source code
.feature Gherkin document
.fish Fish shell script
.fo XSL FO file
.for Fortran source code
.gbr Gerber file
.gcode G-code file
.gcrd Electronic business card
.gd GDScript script
.gdi GD-ROM image cuesheet
.gdshader Godot Engine shader
.go Go source code
.gradle Gradle script
.groovy Groovy source code
.gs Genie source code
.gsh Groovy source code
.gvp Google Video Pointer shortcut
.gvy Groovy source code
.gx G-code Extended file
.gy Groovy source code
.h C header
.h++ C++ header
.hh C++ header
.hp C++ header
.hpp C++ header
.hs Haskell source code
.htc HTML component
.hxx C++ header
.ica Citrix ICA settings file
.ics VCS/ICS calendar
.idl IDL document
.ime iMelody ringtone
.imy iMelody ringtone
.ins TeX document
.iptables iptables configuration file
.it87 IT 8.7 color calibration file
.jad JAD document
.java Java source code
.jl Julia source code
.jnlp JNLP file
.jrd JRD document
.js JavaScript program
.jse Encoded JScript program
.jsm JavaScript program
.json JSON document
.json-patch JSON patch
.json5 JSON5 document
.jsonld JSON-LD document
.kdelnk Desktop entry
.ksy Kaitai Struct definition file
.kt Kotlin source code
.la Libtool shared library
.latex TeX document
.ldif LDIF address book
.lhs LHS source code
.lisp Common Lisp source code
.log Application log
.ltx TeX document
.lua Lua script
.ly Lilypond music sheet
.m MATLAB file
.m3u Media playlist
.m3u8 Media playlist
.m4 M4 macro
.mab Markaby script
.mak Makefile build file
.man Manual page
.manifest Web application cache file
.mbox Mailbox file
.mc2 WarpScript source code
.me Troff ME input document
.mjs JavaScript program
.mk Makefile build file
.ml OCaml source code
.mli OCaml source code
.mm Objective-C++ source code
.moc Qt MOC file
.mof MOF file
.mount Systemd unit file
.mpl MPL2 subtitles
.mrl MRML playlist
.mrml MRML playlist
.ms Troff MS input document
.mup Mup musical composition document
.nfo NFO document
.nim Nim source code
.nimble Nimscript source code
.nims Nimscript source code
.not Mup musical composition document
.nu Nu shell script
.ocl OCL file
.ooc OOC source code
.openvpn OpenVPN profile
.opml OPML syndication feed
.org Org-mode file
.ovpn OpenVPN profile
.p Pascal source code
.p7s Detached S/MIME signature
.pas Pascal source code
.patch Differences between files
.path Systemd unit file
.pcf Cisco VPN settings
.perl Perl script
.pgn PGN chess game notation
.php PHP script
.php3 PHP script
.php4 PHP script
.php5 PHP script
.phps PHP script
.pl Perl script
.po Translation file
.pod Perl script
.ppd PostScript printer description
.ps1 PowerShell script
.py Python script
.py3 Python 3 script
.py3x Python 3 script
.pyi Python 3 script
.pyx Python script
.qml Qt Markup Language file
.qmlproject Qt Markup Language file
.qmltypes Qt Markup Language file
.rb Ruby script
.reg Windows Registry extract
.rej Rejected patch
.rnc RELAX NG XML schema
.rng XML document
.roff Troff document
.ros Common Lisp source code
.rs Rust source code
.rst ReStructuredText document
.rt RealText document
.rtx Rich text document
.sage SageMath script
.sami SAMI subtitles
.sass Sass CSS pre-processor file
.sc Scala source code
.scala Scala source code
.scm Scheme source code
.scope Systemd unit file
.scss SCSS pre-processor file
.sdp SDP multicast stream file
.service D-Bus service file
.sgf SGF record
.sgm SGML document
.sgml SGML document
.sh Shell script
.sieve Sieve mail filter script
.siv Sieve mail filter script
.slice Systemd unit file
.slk Spreadsheet interchange document
.socket Systemd unit file
.spec RPM spec file
.sql SQL code
.src WAIS source code
.srt SubRip subtitles
.ss Scheme source code
.ssa SSA subtitles
.sty TeX document
.sub MicroDVD subtitles
.sv SystemVerilog source code
.svh SystemVerilog header
.swap Systemd unit file
.sylk Spreadsheet interchange document
.t Perl script
.t2t txt2tags document
.target Systemd unit file
.tcl Tcl script
.tex TeX document
.texi TeXInfo document
.texinfo TeXInfo document
.timer Systemd unit file
.tk Tcl script
.toc CD Table Of Contents
.toml TOML document
.tr Troff document
.trig TriG RDF document
.ts Message catalog
.tsv TSV document
.ttl Turtle document
.twig Twig template
.txt Plain text document
.typ Typst document
.uil X-Motif UIL table
.url Internet shortcut
.uue uuencoded file
.v Verilog source code
.vala Vala source code
.vapi Vala source code
.vbe Encoded VBScript program
.vbs VBScript program
.vcard Electronic business card
.vcf Electronic business card
.vcs VCS/ICS calendar
.vct Electronic business card
.vhdl VHDL source code
.vtt WebVTT subtitles
.wml WML document
.wmls WMLScript program
.wsgi Python script
.xbl XML document
.xmi XMI file
.xml XML document
.xsd XML document
.xslfo XSL FO file
.yaml YAML document
.yml YAML document

Fonts

.ttc Font collection
.ttf TrueType font
.woff WOFF font
.woff2 WOFF2 font

3D models

.3mf 3MF document
.glb glTF model
.gltf glTF model
.iges IGES document
.igs IGES document
.mtl OBJ 3D model material library
.stl STL 3D model
.vrm VRML document
.vrml VRML document
.wrl VRML document

Programs & libraries

.32x Genesis 32X ROM
.3ds Nintendo 3DS ROM
.3dsx Nintendo 3DS Executable
.a26 Atari 2600 ROM
.a78 Atari 7800 ROM
.agb Game Boy Advance ROM
.appimage AppImage application bundle
.cci Nintendo 3DS ROM
.cgb Game Boy Color ROM
.chd MAME compressed hard disk image
.cpl Windows or EFI program
.dll Windows or EFI program
.drv Windows or EFI program
.efi Windows or EFI program
.exe Windows or EFI program
.gb Game Boy ROM
.gba Game Boy Advance ROM
.gbc Game Boy Color ROM
.gen Genesis ROM
.gg Game Gear ROM
.hfe HFE floppy disk image
.k7 Thomson cassette
.lib Windows or EFI program
.lnx Atari Lynx ROM
.m7 Thomson Mémo7 cartridge
.mdx Genesis 32X ROM
.msx MSX ROM
.n64 Nintendo64 ROM
.nds Nintendo DS ROM
.nes NES ROM
.nez NES ROM
.ngc Neo-Geo Pocket Color ROM
.ngp Neo-Geo Pocket ROM
.ocx Windows or EFI program
.pce PC Engine ROM
.sap SAP Thomson floppy disk image
.scr Windows or EFI program
.sfc Super NES ROM
.sg SG-1000 ROM
.sgb Game Boy ROM
.sgd Genesis ROM
.smc Super NES ROM
.sms Master System ROM
.sys Windows or EFI program
.unf NES ROM
.unif NES ROM
.v64 Nintendo64 ROM
.vb Virtual Boy ROM
.ws Bandai WonderSwan ROM
.wsc Bandai WonderSwan Color ROM
.z64 Nintendo64 ROM

Other formats

.adf Amiga disk image
.afm Adobe font metrics
.ai Adobe Illustrator document
.ani Windows animated cursor
.anx Annodex exchange format
.apk Android package
.asar Electron Archive (ASAR)
.asc PGP/MIME-encrypted message header
.asf ASF video
.atom Atom syndication feed
.azw3 Kindle book document
.bak Backup file
.bdf BDF font
.blend Blender scene
.blender Blender scene
.bps BPS patch
.bsdiff Binary differences between files
.cap Network packet capture
.cbor CBOR Data
.cdi Padus DiscJuggler CD image
.cdr Corel Draw drawing
.cer X.509 certificate
.cert DER/PEM/Netscape-encoded X.509 certificate
.class Java class
.crl Certificate revocation list
.crt DER/PEM/Netscape-encoded X.509 certificate
.cso Compressed CD image
.dcm DICOM image
.der DER/PEM/Netscape-encoded X.509 certificate
.dia Dia diagram
.dmg Apple disk image
.dmp Network packet capture
.egon Egon Animator animation
.ent XML entities document
.eris ERIS Link
.escn Godot Engine scene
.etheme Enlightenment theme
.fb2 FictionBook document
.fd Floppy disk image
.fds Nintendo FDS disk image
.fit FITS document
.fits FITS document
.fodg ODG drawing (Flat XML)
.fts FITS document
.gbrjob Gerber job file
.geo.json GeoJSON geospatial data
.geojson GeoJSON geospatial data
.gf Generic font file
.gml GML document
.gmo Translated messages (machine-readable)
.gnd GNUnet search file
.gpg PGP/MIME-encrypted message header
.gpx GPX geographic data
.gsf PostScript type-1 font
.hlp WinHelp help file
.hpgl HPGL file
.htm XHTML page
.html XHTML page
.icc ICC profile
.icm ICC profile
.img Raw disk image
.ips IPS patch
.iso Raw CD image
.iso9660 Raw CD image
.its ITS translation file
.jceks Java JCE keystore
.jks Java keystore
.karbon Karbon14 drawing
.kexi Kexi database file
.kexic Kexi settings
.kexis Kexi shortcut
.key PGP keys
.kfx Kindle book document
.kil KIllustrator drawing
.kino SMIL document
.kml KML geographic data
.kon Kontour drawing
.kpm KPovModeler scene
.ks Java keystore
.lnk Windows shortcut
.meta4 Metalink file
.metalink Metalink file
.mht MHTML web archive
.mhtml MHTML web archive
.mif Adobe FrameMaker MIF document
.mmf SMAF audio
.mml MathML document
.mo Translated messages (machine-readable)
.mxf MXF video
.nsc Windows Media Station file
.nzb NewzBin usenet index
.ogx Ogg multimedia file
.old Backup file
.oprc Palm OS database
.owl RDF file
.owx OWL XML file
.p10 PKCS#10 certification request
.p12 PKCS#12 certificate bundle
.p7b PKCS#7 certificate bundle
.p7c PKCS#7 file
.p7m PKCS#7 file
.p8 PKCS#8 private key
.p8e PKCS#8 private key (encrypted)
.pcap Network packet capture
.pcf.gz PCF font
.pcf.z PCF font
.pcl PCL file
.pdb Palm OS database
.pem DER/PEM/Netscape-encoded X.509 certificate
.pfa PostScript type-1 font
.pfb PostScript type-1 font
.pfr TDPFR font
.pfx PKCS#12 certificate bundle
.pgp PGP/MIME-encrypted message header
.pk Packed font file
.pkipath PkiPath certification path
.pkr PGP keys
.por SPSS portable data file
.pqa Palm OS database
.prc Palm OS database
.psf Linux PSF console font
.pub Microsoft Publisher document
.pyc Python bytecode
.pyo Python bytecode
.qcow QEMU QCOW disk image
.qcow2 QEMU QCOW disk image
.qd Floppy disk image
.qed QEMU QED disk image
.qs SPARQL query
.qtl QuickTime playlist
.ram RealMedia playlist
.raml RAML document
.raw-disk-image Raw disk image
.rdf RDF file
.rdfs RDF file
.res Godot Engine resource
.rm RealMedia document
.rmj RealMedia document
.rmm RealMedia document
.rms RealMedia document
.rmvb RealMedia document
.rmx RealMedia document
.rss RSS summary
.sav SPSS data file
.scn Godot Engine scene
.sda StarDraw drawing
.shape Dia shape
.shn Shorten audio
.sig Detached OpenPGP signature
.sik Backup file
.skr PGP keys
.smaf SMAF audio
.smd StarMail email
.smi SMIL document
.smil SMIL document
.sml SMIL document
.snap Snap package
.so Shared library
.spc PKCS#7 certificate bundle
.spd Speedo font
.spl Shockwave Flash file
.spx Apple System Profiler
.sqlite2 SQLite2 database
.sqlite3 SQLite3 database
.sqsh Squashfs filesystem image
.srx SPARQL query results
.swf Shockwave Flash file
.swm WIM disk image
.tmx Tiled map files
.tnef TNEF message
.tnf TNEF message
.torrent BitTorrent seed file
.tres Godot Engine resource
.tscn Godot Engine scene
.tsx Tiled tileset files
.ttx TrueType XML font
.ufraw UFRaw ID image
.vdi VDI disk image
.vhd VHD disk image
.vhdx VHDX disk image
.vmdk VMDK disk image
.vpc VHD disk image
.wasm WASM binary module
.wim WIM disk image
.wpg WordPerfect/Drawperfect image
.wpl WPL playlist
.xbel XBEL bookmarks
.xht XHTML page
.xhtml XHTML page
.xlf XLIFF translation file
.xliff XLIFF translation file
.xsl XSLT stylesheet
.xslt XSLT stylesheet
.xspf XSPF playlist
.zim OpenZIM file
.zsav SPSS data file