7-Zip is a rock-solid file archiver for Windows with a high compression ratio. It is the premier archiver for the LZMA compression format (a.k.a. 7z). Indeed, the 7-zip web site is also the home of the LZMA SDK (Software Development Kit).
Compared to WinRAR 3.50, CAB ARC 5.1, win zip 10.0 beta (maximum-PP Md), win zip 10.0 beta (maximum-portable) this software have high compression rate and it saves more space, system requirements are also mininmal
Version 4.42 of 7-zip has been a workhorse for over a year. The just-released 4.47 (beta) offers these improvements:
* New fast compression mode for Deflate method in Zip and GZip.
* New “Compress shared files” option in GUI and -ssw switch.
* Some bugs were fixed.
* New localization: Norwegian Nynorsk.
The main features of 7-Zip are:
* High compression ratio in new 7z format with LZMA compression
* Supported formats:
o Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
o Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, Z, CPIO, RPM, DEB and NSIS
* For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the 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 63 languages
Download from 7-Zip
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