List of Most Common file extensions

There are many different common file extensions and common file types used with computers, and you'll find an entire list of common file extensions and types on our computer files and file extensions page. It is impossible to remember all file extensions and their associated software programs. Below is the list of most common file extensions, broken into categories by sort of files along with the developer and available 100% free online common file tools and apps.

Extension File Type Developer Free Apps
.3DM Rhino 3D Model Robert McNeel and Associates Free 3DM Apps
.3DS 3D Studio Scene Autodesk Free 3DS Apps
.3G2 3GPP2 Multimedia File 3rd Generation Partnership Project Free 3G2 Apps
.3GP 3GPP Multimedia File Third Generation Partnership Project Free 3GP Apps
.7Z 7-Zip Compressed File Igor Pavlov Free 7Z Apps
.ACCDB Access 2007 Database File Microsoft Free ACCDB Apps
.AI Adobe Illustrator File Adobe Free AI Apps
.AIF Audio Interchange File Format Apple Free AIF Apps
.APK Android Package File Google Free APK Apps
.APP macOS Application Apple Free APP Apps
.ASF Advanced Systems Format File Microsoft Free ASF Apps
.ASP Active Server Page Microsoft Free ASP Apps
.ASPX Active Server Page Extended File Microsoft Free ASPX Apps
.AVI Audio Video Interleave File Microsoft Free AVI Apps
.B Grand Theft Auto 3 Saved Game File Rockstar Games Free B Apps
.BAK Backup File Not Available Free BAK Apps
.BAT DOS Batch File Microsoft Free BAT Apps
.BIN Binary Disc Image Not Available Free BIN Apps
.BMP Bitmap Image File Microsoft Free BMP Apps
.C C/C++ Source Code File Not Available Free C Apps
.CAB Windows Cabinet File Microsoft Free CAB Apps
.CBR Comic Book RAR Archive Not Available Free CBR Apps
.CER Internet Security Certificate Not Available Free CER Apps
.CFG Configuration File Not Available Free CFG Apps
.CFM ColdFusion Markup File Adobe Free CFM Apps
.CGI Common Gateway Interface Script Not Available Free CGI Apps
.COM DOS Command File Microsoft Free COM Apps
.CPL Windows Control Panel Item Microsoft Free CPL Apps
.CRX Chrome Extension Google Free CRX Apps
.CSR Certificate Signing Request File Not Available Free CSR Apps
.CSS Cascading Style Sheet Not Available Free CSS Apps
.CUE Cue Sheet File Cue Free CUE Apps
.CUR Windows Cursor Microsoft Free CUR Apps
.DAT Data File Not Available Free DAT Apps
.DB Database File Not Available Free DB Apps
.DBF Database File dBASE Free DBF Apps
.DCR Shockwave Media File Adobe Free DCR Apps
.DDS DirectDraw Surface Microsoft Free DDS Apps
.DEB Debian Software Package Debian Free DEB Apps
.DESKTHEMEPACK Windows 8 Desktop Theme Pack File Microsoft Free DESKTHEMEPACK Apps
.DLL Dynamic Link Library Microsoft Free DLL Apps
.DMG Apple Disk Image Apple Free DMG Apps
.DMP Windows Memory Dump Microsoft Free DMP Apps
.DOC Microsoft Word Document Microsoft Free DOC Apps
.DOCX Microsoft Word Open XML Document Microsoft Free DOCX Apps
.DRV Device Driver Microsoft Free DRV Apps
.DWG AutoCAD Drawing Database File Autodesk Free DWG Apps
.DXF Drawing Exchange Format File Autodesk Free DXF Apps
.EPS Encapsulated PostScript File Adobe Free EPS Apps
.EXE Windows Executable File Microsoft Free EXE Apps
.FLV Flash Video File Adobe Free FLV Apps
.FNT Windows Font File Microsoft Free FNT Apps
.FON Generic Font File Not Available Free FON Apps
.GADGET Windows Gadget Microsoft Free GADGET Apps
.GED GEDCOM Genealogy Data File The LDS Church Free GED Apps
.GIF Graphical Interchange Format File CompuServe Free GIF Apps
.GPX GPS Exchange File Not Available Free GPX Apps
.GZ Gnu Zipped Archive The GNU Project Free GZ Apps
.HEIC High Efficiency Image Format Moving Picture Experts Group Free HEIC Apps
.HQX BinHex 4.0 Encoded File BinHex Free HQX Apps
.HTM Hypertext Markup Language File Not Available Free HTM Apps
.HTML Hypertext Markup Language File Not Available Free HTML Apps
.ICNS macOS Icon Resource File Apple Free ICNS Apps
.ICO Icon File Microsoft Free ICO Apps
.INDD Adobe InDesign Document Adobe Free INDD Apps
.INI Windows Initialization File Not Available Free INI Apps
.ISO Disc Image File International Organization for Standardization Free ISO Apps
.JAR Java Archive File Oracle Free JAR Apps
.JPG JPEG Image Joint Photographic Experts Group Free JPG Apps
.JS JavaScript File Not Available Free JS Apps
.JSP Java Server Page Oracle Free JSP Apps
.KEY Keynote Presentation Apple Free KEY Apps
.KML Keyhole Markup Language File Google Free KML Apps
.KMZ Google Earth Placemark File Google Free KMZ Apps
.LNK Windows Shortcut Microsoft Free LNK Apps
.LOG Log File Not Available Free LOG Apps
.M Objective-C Implementation File Apple Free M Apps
.M4V iTunes Video File Apple Free M4V Apps
.MAX 3ds Max Scene File Autodesk Free MAX Apps
.MDB Microsoft Access Database Microsoft Free MDB Apps
.MDF Media Disc Image File Alcohol Software Free MDF Apps
.MID MIDI File Not Available Free MID Apps
.MIM Multi-Purpose Internet Mail Message File Internet Engineering Task Force Free MIM Apps
.MOV Apple QuickTime Movie Apple Free MOV Apps
.MP4 MPEG-4 Video File Moving Picture Experts Group Free MP4 Apps
.MPG MPEG Video File Not Available Free MPG Apps
.MSG Outlook Mail Message Microsoft Free MSG Apps
.ODT OpenDocument Text Document Apache Software Foundation Free ODT Apps
.OTF OpenType Font Not Available Free OTF Apps
.PAGES Pages Document Apple Free PAGES Apps
.PCT Picture File Apple Free PCT Apps
.PDB Program Database Not Available Free PDB Apps
.PDF Portable Document Format File Adobe Free PDF Apps
.PHP PHP Source Code File Not Available Free PHP Apps
.PKG Mac OS X Installer Package Apple Free PKG Apps
.PL Perl Script Not Available Free PL Apps
.PLUGIN Mac OS X Plugin Not Available Free PLUGIN Apps
.PNG Portable Network Graphic PNG Development Group Free PNG Apps
.PRF Outlook Profile File Microsoft Free PRF Apps
.PSD Adobe Photoshop Document Adobe Free PSD Apps
.PSPIMAGE PaintShop Pro Image Corel Free PSPIMAGE Apps
.RAR WinRAR Compressed Archive Eugene Roshal Free RAR Apps
.RM RealMedia File RealNetworks Free RM Apps
.ROM N64 Game ROM File Not Available Free ROM Apps
.RPM Red Hat Package Manager File Red Hat Free RPM Apps
.RSS Rich Site Summary Not Available Free RSS Apps
.RTF Rich Text Format File Microsoft Free RTF Apps
.SAV Saved Game Not Available Free SAV Apps
.SDF Standard Data File Not Available Free SDF Apps
.SITX StuffIt X Archive Smith Micro Free SITX Apps
.SQL Structured Query Language Data File ISO IEC Free SQL Apps
.SRT SubRip Subtitle File Not Available Free SRT Apps
.SVG Scalable Vector Graphics File Adobe Free SVG Apps
.SWF Shockwave Flash Movie Adobe Free SWF Apps
.SYS Windows System File Microsoft Free SYS Apps
.TAR.GZ Compressed Tarball File The GNU Project Free TAR.GZ Apps
.TEX LaTeX Source Document Donald Knuth Free TEX Apps
.TGA Targa Graphic Avid Technology Free TGA Apps
.THM Thumbnail Image File Not Available Free THM Apps
.TIF Tagged Image File Adobe Free TIF Apps
.TIFF Tagged Image File Format Adobe Free TIFF Apps
.TMP Temporary File Not Available Free TMP Apps
.TOAST Toast Disc Image Roxio Free TOAST Apps
.TTF TrueType Font Apple Free TTF Apps
.TXT Plain Text File Not Available Free TXT Apps
.UUE Uuencoded File Not Available Free UUE Apps
.VCD Virtual CD H+H Free VCD Apps
.VOB DVD Video Object File Not Available Free VOB Apps
.WAV WAVE Audio File Microsoft and IBM Free WAV Apps
.WMV Windows Media Video File Microsoft Free WMV Apps
.WPD WordPerfect Document Corel Free WPD Apps
.WPS Microsoft Works Word Processor Document Microsoft Free WPS Apps
.WSF Windows Script File Microsoft Free WSF Apps
.XHTML Extensible Hypertext Markup Language File Not Available Free XHTML Apps
.XLR Works Spreadsheet Microsoft Free XLR Apps
.XLS Excel Spreadsheet Microsoft Free XLS Apps
.XLSX Microsoft Excel Open XML Spreadsheet Microsoft Free XLSX Apps
.YUV YUV Encoded Image File Not Available Free YUV Apps
.ZIP Zipped File Phil Katz Free ZIP Apps
.ZIPX Extended Zip File Corel Free ZIPX Apps
Extension File Type Developer Free Apps