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Common file extensions
| Extension | File type description |
| uTorrent incomplete download file | |
| Temporary file | |
| ARJ multi-volume compressed archive | |
| IsoBuster CD/DVD image file data recovery | |
| Compressed file from a multi-volume archive | |
| Compressed file from a multi-volume archive | |
| Compressed file from a multi-volume archive | |
| README.1st text file | |
| Three-dimensional drawing file | |
| 3DMark result | |
| 3GPP2 multimedia file | |
| Multimedia files for wireless networks | |
| 7z compressed archive file | |
| 7z compressed archive file | |
| Advanced audio coding | |
| Album file | |
| Adobe Photoshop brush file | |
| Office Access 2007 database file format | |
| Access Database templates | |
| Compressed file archive | |
| Adobe Illustrator graphics | |
| Adaptive Multi-Rate compressed audio | |
| Animated cursor | |
| Animation | |
| MAC application package file | |
| ARJ compressed file archive | |
| ASP script, page | |
| ASP.NET script, page | |
| AUC database | |
| Audacity project file | |
| Audio Video Interleave movie | |
| Backup file | |
| Batch file (executable) | |
| Bittorrent unfinished download file | |
| Bittorrent unfinished download file | |
| BINK video file | |
| Binary file | |
| Macbinary II encoded file | |
| Backup file | |
| Standard Windows Bitmap image (also OS/2) | |
| Backup of DVD info file | |
| CINEMA 4D file format | |
| Windows Cabinet Compressed Archive | |
| Calendar file | |
| Capture file | |
| Comic Book Archive file or ComicBook Reader File | |
| Comic Book Archive file or ComicBook Reader File | |
| CloneCD track description file | |
| CD Audio track | |
| CorelDRAW vector image | |
| Compound index file | |
| Configuration files | |
| Microsoft compiled HTML help file | |
| Generaly configuration file | |
| Command file | |
| Microsoft Windows Vista contact file | |
| Canon digital camera RAW image format version 2.0 | |
| Canon digital camera RAW image format | |
| Cascading Style Sheets file | |
| Comma Separated Value file | |
| Windows Live Messenger Contact List | |
| Cue sheet description file | |
| PowerISO Direct-Access-Archive file | |
| Disk at Once CD/DVD image file | |
| Generally text or binary datafile | |
| Video CD MPEG movie MPEG1 | |
| Database file | |
| Database file | |
| Outlook Express e-mail folder | |
| Kodak Digital Camera Raw Image Format | |
| Spell checking dictionary | |
| German language translation file | |
| Debian Linux package file | |
| Module definition file (config) | |
| Device-Independent bitmap graphic | |
| Custom dictionary file | |
| DjVu file bitmap image | |
| Dynamic Link Library file | |
| Apple Mac OS X disk image file | |
| Demo file | |
| Microsoft Office Word document | |
| Word 2007 XML macro-enabled document | |
| Microsoft Word 2007 XML based document file format | |
| MS Word Document template | |
| Word 2007 XML macro-enabled template file | |
| Word 2007 XML template file | |
| Device Driver | |
| Vector file | |
| Macintosh OS X Folder Information | |
| Dutch localization language file | |
| AutoCAD Drawing | |
| Drawing Exchange Format | |
| Email message | |
| Microsoft Windows enhanced compressed metafile | |
| English localization language file | |
| Adobe Illustrator text and graphics (Encapsulated PostScript) | |
| Spanish language translation file | |
| Executable file | |
| Fax file(generic Group 3 1bit encoded data) | |
| File list | |
| Editable Adobe Flash Movie | |
| Audio files encoded by Flac - free lossless audio codec | |
| Audio files encoded by Flac - free lossless audio codec | |
| Flash video file | |
| Format file | |
| Usually font file | |
| Database memo file | |
| Kodak FlashPiX bitmap image | |
| Windows sidebar gadget file | |
| Graphics interchange file format | |
| GZIP compressed archive file | |
| High scores file | |
| BinHex archive format, orig. Macintosh | |
| HyperText Markup Language file - web page | |
| Web page file - Hypertext Markup Language | |
| Icon file | |
| Icon image | |
| iCalendar calendar data | |
| Index file | |
| Bitmap image | |
| DVD movie information file | |
| Info file | |
| Bitmap Graphic (several programs) | |
| CloneCD image file | |
| Include file | |
| Adobe InDesign graphics document file | |
| Adobe Indesign document | |
| Windows installation script | |
| Text configuration file | |
| CD/DVD ISO binary image file | |
| Compressed disk image file format | |
| Compressed archive file package for Java classes and data | |
| JPEG image, picture file format | |
| JPEG bitmap image file format | |
| JavaScript file | |
| JavaScript object notation file | |
| Mozilla Firefox bookmark backup file | |
| JAVA Server page | |
| Keyhole Markup Language file | |
| Microsoft Linker input library file (Common Object File Format) | |
| Library file | |
| Language definition file | |
| Windows Shortcut | |
| Log file | |
| MPEG-2 stream (Blu-Ray) | |
| MP3 songs playlist file | |
| MPEG-4 compressed audio file | |
| iTunes Music Store audio file | |
| MPEG-4 video file format | |
| Macro file | |
| dBase index | |
| Microsoft Access database | |
| Alcohol 120% disc image | |
| Microsoft Office Document Imaging file format | |
| Image file (media descriptor file) | |
| Mime HTML (MHTML) file | |
| MIDI-sequention sound | |
| Mission file | |
| Matroska video-audio multimedia file | |
| Digital music sound clip | |
| Apple QuickTime digital movie file | |
| Compressed audio, music file | |
| MPEG-4 video file format | |
| MPEG 1 video file format | |
| Microsoft Project file | |
| Minolta Dimage Raw Image File | |
| Microsoft Windows Installer installation package file | |
| Temporary file | |
| Nero BackItUp archive file | |
| Nero BackItUp compressed backup file | |
| Nintendo DS game ROM image | |
| nfo readme file, common text file | |
| Notation or note file | |
| Nero-Burning ROM CD or DVD image file | |
| Program object file | |
| Default object file | |
| OpenOffice Draw graphic file | |
| OpenOffice.org Calc Spreadsheet file | |
| OpenOffice.org Writer text document | |
| Ogg Vorbis audio file | |
| Backup file | |
| Microsoft OneNote section file | |
| Microsoft OneNote package file | |
| Options file | |
| OpenType font file format | |
| Computer games pack file | |
| Color palette file | |
| Partial download file | |
| Kodak Picture CD multiresolution image | |
| Generic audio file | |
| PC Paintbrush bitmap graphics | |
| Palmpilot database file | |
| Portable document format: Adobe Acrobat file | |
| Monitor or printer profile file | |
| PHP script, page | |
| PHP version 3 script file | |
| Palette file | |
| Polygon format | |
| Portable (Public) Network Graphic | |
| Microsoft PowerPoint 2007 XML template | |
| Microsoft PowerPoint slideshow | |
| Microsoft PowerPoint 2007 macro-enabled XML show | |
| Microsoft PowerPoint 2007 XML Show | |
| Microsoft Office PowerPoint Presentation file format | |
| PowerPoint 2007 Macro-Enabled XML Presentation | |
| PowerPoint 2007 XML Presentation | |
| Preferences file | |
| Program file | |
| Program source file | |
| Generally project file | |
| Generally printer output file | |
| Configuration file (PROfile) | |
| PTC Pro/Engineer part or model file | |
| SolidWorks Part file | |
| Adobe PostScript file | |
| Photoshop's Large Document Format | |
| Adobe Photoshop graphics | |
| Microsoft Office Outlook personal folder file | |
| Microsoft Publisher document | |
| Windows Mobile personal note file | |
| Puzzle file | |
| RAR compressed files from a multi-volume archive | |
| RAR compressed files from a multi-volume archive | |
| RAR compressed files from a multi-volume archive | |
| WinRAR compressed archive | |
| Generally a digital camera's image raw file format | |
| C/C++ resource script | |
| Record file | |
| Reference file | |
| Report file | |
| Read Only Memory image (emulators/AONs) | |
| Compiled resource file | |
| Really Simple Syndication - RSS file format | |
| Rich Text Format document | |
| Source code | |
| Saved game file type | |
| Game scenario file | |
| Windows screensaver file | |
| Game scenario file | |
| Setup data or info | |
| ReadyBoost cache file | |
| 3D graphic image format | |
| StuffIt Expander archive format | |
| StuffIt Expander archive | |
| Generic sound file | |
| Sniffer capture file | |
| Song file | |
| Solution file | |
| Structured Query Language Data SQL | |
| generally source code file | |
| Movie subtitle file format (SubRip format) | |
| Generally game saved state | |
| Microsoft Setup table file | |
| Movie subtitle file format | |
| XML based vector graphics format | |
| Sweden localization language file | |
| ShockWave Flash, Animated vector format for the Internet | |
| Swap file | |
| OpenOffice.org spreadsheet file | |
| OpenOffice.org Writer document | |
| Program symbol table | |
| System file | |
| IsoBuster file | |
| Unix standard Archive format, Tape Archive | |
| Table file | |
| Text file | |
| Thumbnail bitmap image | |
| SonyEricsson mobile phone theme file | |
| Microsoft PowerPoint 2007 theme file - template | |
| Acronis TrueImage backup disk image file | |
| Aldus Tagged Image File Format (TIFF) bitmap image | |
| Temporary file | |
| BitTorrent information file | |
| Template file | |
| Terminal file | |
| TrueType Font | |
| Common simple plain text file | |
| MagicISO Universal Image Format - UIF file | |
| Update info | |
| Firmware upgrade file | |
| Virtual CD-ROM CD image file | |
| VMware virtual disk file | |
| DVD video object file | |
| Volume file | |
| Microsoft Windows virtual device driver | |
| WAVe PCM Sound, standard Windows sound format | |
| WindowBlinds Desktop visual style | |
| Microsoft Windows backup file | |
| Microsoft Works database | |
| Safari web archive | |
| Windows Media Audio | |
| Windows metafile | |
| Windows Media Video | |
| Corel WordPerfect document | |
| Windows Media Player Playlist | |
| Microsoft Works document | |
| Windows Write document | |
| WavPack lossless compressed audio file | |
| Microsoft Office Excel spreadsheet | |
| Excel 2007 XML macro-enabled workbook | |
| Excel 2007 XML Workbook | |
| XML document | |
| Firefox browser extension | |
| XML paper specification format | |
| Compressed ZIP archive file and compressed folder | |
| WinZix compressed archive file |
