7-Zip supports 7z, zip, gzip, bzip2, tar, arj, cab, chm, cpio, deb, dmg, hfs and much more. Click the file and drop it on your desktop, or another file location. You will then see the contents of the zip file. On the menu that pops up, roll your mouse over Open with, then click Windows Explorer. * For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip.
o Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, Z, CPIO, RPM, DEB and NSIS.
* Supported formats: o Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR.
* High compression ratio in new 7z format with LZMA compression.
