RAR (file format)
| 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 | 263-1 bytes (almost 8 exbibytes) | 
| Developed by | Eugene Roshal | 
| Initial release | March 1993 | 
| 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 | 
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.