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7-Zip is a handy utility designed to create or to open archives. Usually, archives are used to keep multiple files in a single one, but also to reduce the size by compressing them.
This program has an excellent compression ratio being able to reduce file size better than other similar programs, including commercial ones. The extension 7z or .7z produces great results.
Users can create ZIP, TAR or 7Z (native format for 7-ZIP) archives, choose different compression levels and methods, encrypt archive with a password. Allows to set how many processors will be used to create the archive, to not slow down computer; also it can split an archive in multiple files based on a size limit and you can select it from 7-ZIP options.
It can open different types of existing archives (RAR, ZIP, ISO ..) and is available also through right click context menu.
smaller file size using 7z format
open ZIP and RAR
cannot create RAR archives
Igor Pavlov (1)
License: Freeware (Open Source)
OS: Windows 8/7/Vista/XP
Size: 1.06 Mb