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+)
Size limitation263-1 bytes (almost 8 exbibytes)
Developed byEugene Roshal
Initial releaseMarch 1993 (1993-03)
Type of formatarchive 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")
Websiterarlab.com

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.