7z is a compressed archive file format that supports several different data compression, encryption and pre-processing filters. The 7z format initially appeared as implemented as a Windows solution. Both the 7-Zip program and a library to read the 7z file format are publicly available under the terms of the GNU Lesser General Public License.
The MIME type of 7z is application/x-7z-compressed.
For Mac OS X the following tool helps decompressing seven-zip encoded files:
http://sixtyfive.xmg…m/products/7zx/
