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.
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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.
.pds - Cyberlink PowerDirector project
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 oxps - Microsoft OpenXPS document
file extension pdf - Adobe Portable document format
file extension jpg - JPEG bitmap image format
file extension mp4 - MPEG-4 video file format
file extension rar - WinRAR RAR compressed archive
file extension epub - Open Publication structure eBook
file extension cdr - CorelDRAW vector or bitmap graphics
file extension part - Partial download file
file extension srt - SubRip video subtitle format
file extension mp3 - Compressed audio and music file, mp3 songs or ringtones
file extension one - Microsoft OneNote document
file extension xlsx - Microsoft Excel Open XML workbook and spreadsheet
file extension docx - Microsoft Word Open XML document
file extension json - JavaScript object notation data interchange format
Recently updated file extensions
The file extension database is maintained and improved on daily basis. Here you can check last updated entries.
file extension pdw - Professional Draw graphic file
file extension mdf - Adobe Mobile Document Format file
file extension gzquar - BitDefender quarantined data
file extension dmsp - Roxio PhotoSuite project file
file extension ahk - AutoHotkey script
file extension ac7 - SPICE AC/frequency domain output
file extension screenshot - CrossGL SnapDraw screenshot
file extension 131 - Winfunktion Mathematik v8.0 Julia fractal file
file extension std - Prosa state transition diagram graphics file
file extension 3dm - 3DML model
file extension pdml - Packet Details Markup Language source code
file extension 239 - Winfunktion Mathematik v8.0 Julia fractal file
file extension 157 - Winfunktion Mathematik v8.0 Julia fractal file
file extension 138 - Winfunktion Mathematik v8.0 Julia fractal file
file extension nv - NewViews 1 accounting data file
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