7-Zip is a file archiver with a high compression ratio. The program supports 7z, ZIP, CAB, RAR, ARJ, LZH, CHM, GZIP, BZIP2, Z, TAR, CPIO, RPM and DEB formats. Compression ratio in the new 7z format is 30-50% better than ratio in ZIP format.
Reviewing 15.10 Beta (Nov 3, 2015)
Why in the name of Odins beard do they continue to use these incredibly ugly icons, the application will never get anywhere as long as they continue to use them.
You can manually update the icons with the following link, but why do they not just change them??
Reviewing 15.08 Beta (Oct 2, 2015)
OPEN SOURCE, compared to copyright (foreign, unknown) stuff hidden in newish RAR, etc.
Also available as 32 bit.
Allows compression, decompression of many file types.
Regularly improved, upgraded, with compatibility with many older & freeware versions.
State of the art GUI menu interface, with good folder usage, file usage.
Version inbuilt into my favorite file browser (Servant Salamander) is faster, & almost as tightly compressed.
7-zip is used as a benchmark standard by many reviewing sites.
Benchmarking allows 8-core tests.
Ultra-compilation only allows 2-core, with very small improvement on overall compression.
Reviewing 15.08 Beta (Oct 1, 2015)
Its very good but not IMO as good as Winrar, but I don't think anything is - Great for free though!
Reviewing 15.05 Beta (Jun 25, 2015)
The only program to use, forget winzip and there charges this is free and does the same job if not better.
Reviewing 15.00 Alpha (Apr 6, 2015)
dhry, refer here for Igor Pavlov's own explanation as to what seems like 7-Zip's odd version numbering: http://sourceforge.net/p...n/45797/thread/e127e39c . This is an old explanation but still holds true.
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