List of Computer File Extensions and their Meaning
File extensions indicate the file format or file type. It is start dot (.) symbol and filename. File extensions consist of three or four characters, although in rare cases it could be two .Which are typically letters or digits. Such as .txt, .mp3, .pptx etc. This file extension helps the operating system to know what type of file or program to run when you double-click on it. Here list of computer file extension and their meaning.
Executable File Extensions
| File Extension | File Extension Meaning |
| .apk | Android package file |
| .bat | Batch file |
| .bin | Binary file |
| .cgi | Common Gateway Interface Script |
| .com | MS-DOS command file |
| .exe | Executable file |
| .jar | Java Archive file |
| .py | Python file |
| .wsf | Windows Script File |
Audio File Extensions
| File Extension | File Extension Meaning |
| .aif | AIF/Audio Interchange audio file |
| .cda | CD audio track file |
| .iff | Interchange File Format |
| .mid or .midi | MIDI audio file. |
| .mp3 | MP3 audio file |
| .mpa | MPEG-2 audio file |
| .wav | WAVE file |
| .wma | Windows Media audio file |
| .wpl | Windows Media Player playlist |
Video File Extensions
| File Extension | File Extension Meaning |
| .avi | Audio Video Interleave File |
| .flv | Adobe Flash Video File |
| .h264 | H.264 video File |
| .m4v | Apple MP4 video File |
| .mkv | Matroska Multimedia Container |
| .mov | Apple QuickTime movie File |
| .mp4 | MPEG-4 Video File |
| .mpg or .mpeg | MPEG video File |
| .rm | Real Media File |
| .swf | Shockwave flash File |
| .vob | DVD Video Object File |
| .wmv | Windows Media Video File |
| .3g2 | 3GPP2 Multimedia File |
| .3gp | 3GPP multimedia File |
Text File Extensions
| File Extension | File Extension Meaning |
| .doc and .docx | Microsoft Word file |
| .odt | OpenOffice Writer document file |
| .msg | Outlook Mail Message |
| PDF file | |
| .rtf | Rich Text Format File |
| .tex | A LaTeX document file |
| .txt | Plain text file |
| .wks and .wps | Microsoft Works Word Processor Document file |
| .wpd | WordPerfect document |
Spreadsheet File Extensions
| File Extension | File Extension Meaning |
| .ods | OpenOffice Calc spreadsheet file |
| .xlr | Microsoft Works spreadsheet file |
| .xls | Microsoft Excel file |
| .xlsx | Microsoft Excel Open XML spreadsheet file |
Presentation File Extensions
| File Extension | File Extension Meaning |
| .key | Keynote presentation |
| .odp | OpenOffice Impress presentation file |
| .pps | PowerPoint slide show |
| .ppt | PowerPoint presentation |
| .pptx | PowerPoint Open XML presentation |
Database File Extensions
| File Extension | File Extension Meaning |
| .accdb | Access 2007 Database File |
| .csv | Comma separated value file |
| .dat | Data file |
| .db or .dbf | Database file |
| .log | Log file |
| .mdb | Microsoft Access database file |
| .pdb | Program Database |
| .sav | Save file (e.g. game save file) |
| .sql | SQL/Structured Query Language database file |
| .tar | Linux / Unix tarball file archive |
System Related File Extensions
| File Extension | File Extension Meaning |
| .bak | Backup file |
| .cab | Windows Cabinet file |
| .cfg | Configuration file |
| .cpl | Windows Control panel file |
| .cur | Windows cursor file |
| .dll | DLL file |
| .dmp | Dump file |
| .drv | Device driver file |
| .icns | macOS X icon resource file |
| .ico | Icon file |
| .ini | Initialization file |
| .lnk | Windows shortcut file |
| .msi | Windows installer package |
| .sys | Windows system file |
| .tmp | Temporary file |
Web File Extensions
| File Extension | File Extension Meaning |
| .asp and .aspx | Active Server Page file |
| .cer | Internet security certificate |
| .cfm | ColdFusion Markup file |
| .cgi or .pl | Perl script file |
| .css | Cascading Style Sheet file |
| .htm and .html | HTML/Hypertext Markup Language file |
| .js | JavaScript file |
| .jsp | Java Server Page file |
| .part | Partially downloaded file |
| .php | PHP Source Code file |
| .rss | RSS/Rich Site Summary file |
| .xhtml | XHTML / Extensible Hypertext Markup Language file |
Image File Extensions
| File Extension | File Extension Meaning |
| .ai | Adobe Illustrator file |
| .bmp | Bitmap image File |
| .gif | GIF/Graphical Interchange Format image |
| .ico | Icon file |
| .jpeg or .jpg | JPEG image |
| .max | 3ds Max Scene File |
| .obj | Wavefront 3D Object File |
| .png | PNG / Portable Network Graphic image |
| .ps | PostScript file |
| .psd | PSD / Adobe Photoshop Document image |
| .svg | Scalable Vector Graphics file |
| .tif or .tiff | TIFF image |
| .3ds | 3D Studio Scene |
| .3dm | Rhino 3D Model |
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What about XQK? The ChiPmuNk client used to use it for most installers, and I believe WormSurf uses it too, as of version 6.
I only found a few but I need more because this isn’t enough, but thank you though it was a bit helpful.
Hi sir nyc
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hi very informative and impressive website you created on the compute keep it up
file extensions are a very important part of our documents and files. I found it informative. please keep it up and do more.
Am I the only one who noticed .c & .cpp are not included or are they come in something different categories rather than file extension.
It’s very easy to find and to know the application and extensions and it’s a important part of file keep working on it thank you👍
informative info for my knowledge