Backup / Compression

1. 7-Zip

7-Zip is a file archiver with the highest compression ratio. The program supports 7z, ZIP, CAB, RAR, ARJ, GZIP, BZIP2, TAR, CPIO, RPM and DEB formats. Compression ratio in the new 7z format is 30-50% better than ratio in ZIP format.

Development Status: Production/Stable

License: GNU General Public License (GPL)

Operating System: Windows 95/98/2000, Windows NT/2000

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