File extensions sample

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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I want to convert from      to    

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.

edoc file icon.edoc - Electronically certified document

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.

apk file extension icon file extension apk - Google Android application package

rar file extension icon file extension rar - WinRAR RAR compressed archive

pdf file extension icon file extension pdf - Adobe Portable document format

mp4 file extension icon file extension mp4 - MPEG-4 video file format

docx file extension icon file extension docx - Microsoft Word Open XML document

jpg file extension icon file extension jpg - JPEG bitmap image

xlsx file extension icon file extension xlsx - Microsoft Excel Open XML workbook and spreadsheet

default file extension icon file extension epub - Open Publication structure e-book

default file extension icon file extension part - Partial download

default file extension icon file extension oxps - Microsoft OpenXPS document

mp3 file extension icon file extension mp3 - Compressed audio and music file, mp3 songs or ringtones

dll file extension icon file extension dll - Dynamic Link Library

dwg file extension icon file extension dwg - AutoCAD drawing

cdr file extension icon file extension cdr - CorelDRAW vector or bitmap graphics

numbers file extension icon file extension numbers - Apple Numbers spreadsheet

Recently updated file extensions

The file extension database is maintained and improved on daily basis. Here you can check last updated entries.

default file extension icon file extension fp - Homeworld file

default file extension icon file extension mdl - IBM Cognos Model Definition Language file

default file extension icon file extension cmx - The Sims 3D body mesh data file

gadget file extension icon file extension gadget - Windows sidebar gadget

default file extension icon file extension sor - SOR OTDR data

default file extension icon file extension mmsyscache - Google Android system cache

default file extension icon file extension umap - Unreal Tournament map

default file extension icon file extension lngx - KeePaas language data

default file extension icon file extension hmt - HighMAT data

default file extension icon file extension 11 - Salt Lake Winter Olympics 2002 music data

default file extension icon file extension jws - Oracle WebLogic Server Java Web Services data

wrl file extension icon file extension wrl - VRML Worlds 3D graphics

default file extension icon file extension fas - AutoCAD Fast-load Auto LISP compiled data file

default file extension icon file extension fzz - Fritzing project file

default file extension icon file extension lrprev - Adobe Lightroom index file

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

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