UNZIP SOFTWARE RAR
RAR is a proprietary archive
file format that supports data compression, error recovery and file spanning.
It was developed by a Russian software engineer, Eugene Rosahal (the name RAR
stands for Roshal ARchive) and the RAR software is licensed by win.rar GmbHa
Operating system support
Software is available for Microsoft Windows (named WinRAR),
Linux, FreeBSD, Mac OS X, and Android; archive extraction is supported natively
in Chrome OS. WinRAR supports the Windows Graphical User Interface (GUI); other
versions named RAR run as console commands. Later versions are not compatible
with some older operating systems previously supported:a
Creating RAR files
RAR files can be created only with commercial software
WinRAR, RAR, and other software that has written permission from Alexander
Roshal or shares copyrighted code under license from Alexander Roshal. The
software license agreements forbid reverse engineering. However, the fully open
source program The Unarchiver, with support for uncompressing RAR archives, is
distributed under the LGPL without any such restriction against
reverse-engineering; it is possible that it could be a starting point for
writing software capable of creating RAR archives.
Extracting RAR files
Several programs can unpack the file format. RARLAB
distributes the source code and binaries for a freeware command-line
"unrar" program,[9] although this code is not under a free software
license. This program can decompress/extract, but not create, RAR files. As of
November 2014 some 3rd-party programs documented as "supporting the RAR
format" did not recognise RAR5 files.
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