7-Zip is aÂ file archiver that was developed for computers running Microsoft Windows. It uses the 7zfile format, which ensures higher level ofÂ compression (up to 50% higher than the standard zip format), but can easily work with other formats as well.
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Key Features ofÂ 7-Zip:
- High compression ratio in new 7z format with LZMAÂ compression
- Supported formats: Packing / unpacking: (7z, ZIP, GZIP, BZIP2 and TAR) and Unpacking only: (ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, NSIS, RAR, RPM, UDF, WIM, XAR and Z.)
- For ZIP and GZIP formats,Â 7-Zip provides aÂ compression ratio that is 2-10 % better than theratio provided by PKZip and WinZip
- Strong AES-256 encryption in 7z and ZIP formats
- Self-extracting capability for 7z format
- Integration with Windows Shell
- PowerfulÂ File Manager
- Powerful command line version
- Plugin for FAR Manager
- Localizations for 74 languages
Compression ratio results are very dependent upon the data used for the tests. Usually,Â 7-Zipcompresses to 7z format 30-70% better than to zip format. AndÂ 7-Zip compresses to zip format 2-10% better than most of other zip compatible programs.
7-Zip works in Windows 7 / Vista / XP / 2008 / 2003 / 2000 / NT / ME / 98. There is a port of the command line version to Linux/Unix.