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.
File extension of the day
Random daily pick from File-Extensions.org's database.
.eml - Email message
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 exe - Program executable
file extension mp4 - MPEG-4 video file format
file extension jpg - JPEG bitmap image
file extension rar - WinRAR RAR compressed archive
file extension docx - Microsoft Word Open XML document
file extension mp3 - Compressed audio and music file, mp3 songs or ringtones
file extension xlsx - Microsoft Excel Open XML workbook and spreadsheet
file extension part - Partial download
file extension crdownload - Google Chrome incomplete download
file extension dwg - AutoCAD drawing
file extension epub - Open Publication structure e-book
file extension png - Portable Network Graphic file
file extension aae - Apple Photos sidecar file
Recently updated file extensions
The file extension database is maintained and improved on daily basis. Here you can check last updated entries.
file extension 261 - H.261 encoded video
file extension 263 - H.263 encoded video
file extension 264 - H.264/MPEG-4 AVC video data file
file extension 265 - H.265 High Efficiency Video Coding codec encoded video
file extension 26l - Video data
file extension 3g2 - 3GPP2 multimedia data
file extension 3ga - Audio file for wireless networks
file extension 3gp - Multimedia files for wireless networks
file extension 3gp2 - 3GPP2 multimedia data
file extension 3gpa - 3GPP multimedia
file extension 3gpp - 3GPP Third generation partnership project movie
file extension 3gp_128x96 - 3GP video data
file extension 3ivx - 3ivx video data
file extension 3p2 - 3GPP multimedia file format
file extension a52 - Multichanel audio
Begin your search by entering the source and target file type specified by their file extensions. For example simply try flac to mp3.
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