RAR (file format)

RAR file format
Filename extension
.rar, .rev, .r00, .r01
Internet media type
application/vnd.rar
Uniform Type Identifier (UTI)com.rarlab.rar-archive
Magic number52 61 72 21 1A 07 00
(RAR 1.5 to 4.0)
52 61 72 21 1A 07 01 00
(RAR 5+) [1]
Size limitation263-1 bytes (almost 8 exbibytes)
Developed byEugene Roshal
Initial releaseMarch 1993 (1993-03)[2]
Type of formatarchive format
Open format?No (decompression source code available, but not free software, due to restriction that it not be used to create RAR-compatible archives)
Websiterarlab.com

RAR is a proprietary archive file format that supports data compression, error correction and file spanning.[3] It was developed in 1993 by Russian software engineer Eugene Roshal and the software is licensed by win.rar GmbH.[3] The name RAR stands for Roshal Archive.

  1. ^ RAR 5.0 technote
  2. ^ "Interview by correspondence" (in Russian). 1997–2002. Retrieved 26 April 2010.
  3. ^ a b win.rar GmbH. "RAR and WinRAR END USER LICENSE AGREEMENT (EULA)". RARLAB. The author and holder of the copyright of the software is Alexander L. Roshal. [...] Neither RAR binary code, WinRAR binary code, UnRAR source or UnRAR binary code may be used or reverse engineered to re-create the RAR compression algorithm, which is proprietary, without written permission.

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