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 macOS (OS X), and basically telling them, what kind of data and file type they are working with and what associated program opens the 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.
Latest articles
Check out the recently published articles related to file extensions, tutorials or software tips.
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Begin your search by entering the source and target file type specified by their file extensions. For example simply try flac to mp3.
File extension of the day
Random daily pick from File-Extensions.org's database.
.swf - ShockWave Flash, Animated vector format for the Internet
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 apk - Google Android application package
file extension pdf - Adobe Portable document format
file extension xlsx - Microsoft Excel Open XML workbook and spreadsheet
file extension rar - WinRAR RAR compressed archive
file extension epub - Open Publication structure e-book
file extension numbers - Apple Numbers spreadsheet
file extension pages - Pages document
file extension jpg - JPEG bitmap image format
file extension oxps - Microsoft OpenXPS document
file extension mp3 - Compressed audio and music file, mp3 songs or ringtones
file extension part - Partial download
file extension crdownload - Google Chrome incomplete download
file extension dwg - AutoCAD drawing
file extension one - Microsoft OneNote document
file extension cdr - CorelDRAW vector or bitmap graphics
Recently updated file extensions
The file extension database is maintained and improved on daily basis. Here you can check last updated entries.
file extension crdownload - Google Chrome incomplete download
file extension g14 - CAMtastic Mid Layer 14 gerber data
file extension ls_ - Unix ls directory
file extension jtk - Sun Microsystems Java Toolkit data
file extension dia - Computer Support Corporation diagraph graphics
file extension ddo - Tank3D game data
file extension cinema4d - Cinema 4D for Amiga data
file extension a2x - a2x data
file extension btx - InMagic database term/word index
file extension inp - FRANC2D mesh
file extension p3x - HTML document
file extension [b] - Amiga paint image
file extension qti - Apple QuickTime image
file extension ht4 - HTML file Version 4 document
file extension zsc - ROSE Online Zscript script
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