File extension or filename suffix is usually three, four or more characters at the end of computer file names divided by a dot.
File extensions are useful to computer programs and operating systems like Windows or OS X, and basically telling them, what kind of data and file type they are working with and what associated program opens this file.
File-extensions.org library contains thousands of file extensions and the database is still growing.
A large number of file type entries have detailed descriptions, including their current use and the list of programs that can open, view, edit, convert or play unknown file you search for.
Check out the recently published articles related to file extensions, tutorials or software reviews.
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File extension of the day
Random daily pick from file-extensions.org database.
.nng - Pioneer AVIC Navigation unit file
For an overview of common file types,
visit the common file extensions page, which includes a list of the most important computer file formats you should know.
Popular file extensions
List of the most visited file extension records. Click on the link below for more details and software associations.
file extension pdf - Adobe Portable document format
file extension part - Partial download file
file extension flac - Audio files encoded by Flac - free lossless audio codec
file extension epub - Open Publication structure eBook file
file extension pages - iWork Pages document file
file extension apk - Google Android package file
file extension rar - WinRAR RAR compressed archive
file extension 3ga - Audio file for wireless networks
file extension pub - Microsoft Publisher document file
file extension mobi - Mobipocket eBook Format
file extension 002 - Compressed file from a multi-volume archive (part 2)
file extension crdownload - Google Chrome incomplete download file
file extension gadget - Windows sidebar gadget file
file extension json - Mozilla Firefox bookmark backup file
file extension dwg - AutoCAD Drawing file
file extension 264 - H.264/MPEG-4 AVC video file
file extension menc - Microsoft Windows Mobile encrypted file
file extension xlsx - Microsoft Excel 2007, Excel 2010 and Excel 2013 Open XML workbook file
file extension dlc - JDownloader download link container
file extension 001 - Compressed file from a multi-volume archive (part 1)
Recently updated file extensions
Existing and new file extensions are updated or added very often. The database is maintained and improved every day.
file extension st3 - SPICE status file
file extension 386 - Windows virtual device driver
file extension dv - Digital video file
file extension amp - Adobe Photoshop arbitrary map settings file
file extension tsi - TSplayer file
file extension vpm - Garmin voice file
file extension vbc - Vocabulary file
file extension z2f - Zoo Tycoon 2 game file
file extension tp0 - Mascom PVR video file
file extension jpf - JPEG 2000 extended image format (ISO 15444-2) file
file extension sbe - Spybot excludes file
file extension afs - Adobe Type Manager font set
file extension wimp - Microsoft Windows icon palette file
file extension ros - Dynamite VSP rail object style file
file extension enex - Evernote exported XML file
file extension ab1 - ABIF file format
file extension brf - Braille file
file extension gpx - GPS eXchange format
file extension bqy - BrioQuery database file
file extension prd - SoftMaker Presentations document file