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7-Zip is a file archiver with a high compression ratio.

The main features of 7-Zip:

* Highest compression ratio in new 7z format with LZMA compression
* 7-Zip is free software distributed under the GNU LGPL
* Supported formats: 7z, ZIP, CAB, RAR, ARJ, GZIP, BZIP2, TAR, CPIO, RPM and DEB
* For ZIP and GZIP formats 7-Zip provides compression ratio that is 2-10 % better than ratio provided by PKZip and WinZip
* Self-extracting capability for 7z format
* Integration with Windows Shell
* Powerful File Manager
* Powerful command line version
* Plugin for FAR Manager
* Localizations for 47 languages
* works in DOS using HX Extender
* There is port of command line version for DOS, Linux/Unix.