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The File Extension Library

What is a file extension?

Short answer: it's the set of letters after the period (.) in the name of a file.

Long answer: File extensions signify the file format of a file. It tells the operating system (OS) how data was stored in the file. Not all OS, require a file extension though. For instance, this is optional in Unix, but is mandatory with MS-DOS and Windows systems.

In most file formats the file type is actually defined by the contents (first bytes, file structure), but extensions are used to define the application that is used for opening the file.

Below is a detailed database of thousands of file extensions our team has compiled for you. Feel free to browse!


Browse all Extensions:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
DAR - Extension Details
Date Added: January 01, 1970
File Extension:  .DAR
Description 1: .DAR file extension is linked with DAR Disk Archives. A group of files or disk archive is compressed using DAR or Disk ARchive compression. It is used for producing split archives and incremental backups. .DAR file extension was designed to replace the .TAR archive format. .DAR files a specifically used on Unix Operating Systems.
File Type:   Archive/ compressed file
Mode: Binary
Program(s) to Open:  Unix: DAR, Kdar [KDE Disk Archiver]
Common:
Extension: