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EntityQ243303· pop 35· linked from 190 articles

Also known as .rar, Roshal Archive, RAR format, RAR file format, RAR (Roshal Archive)

file format family

Key facts

Filename extension
.rar, .rev, .r00, .r01
Internet media type
application/vnd.rar
Uniform type identifier uti
com.rarlab.rar-archive
Magic number
52 61 72 21 1A 07 00 , (RAR 1.5 to 4.0), 52 61 72 21 1A 07 01 00 , (RAR 5+)
Size limitation
2 -1 bytes (almost 8 exbibytes )
Developed by
Eugene Roshal
Initial release
March 1993 ; 33 years ago ( 1993-03 )
Type of format
archive format
Free format
No (decompression source code publicly available, but not free software , with restriction that it "cannot be used to develop RAR (WinRAR) compatible archiver")
Website
rarlab.com

via Wikipedia infobox

Described at

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Encyclopedic overview

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RAR is a proprietary archive file format that supports data compression, error correction and file spanning. It was developed in 1993 by Russian software engineer Eugene Roshal and the software is licensed by win.rar GmbH. The name RAR stands for Roshal Archive.

Excerpted from Wikipedia’s “RAR” article, available under the CC BY-SA 4.0 licence.