7-Zip supports unpacking 7z, ZIP, GZIP, ARJ, BZIP2, TAR, CAB, CHM, CPIO, NSIS, RAR, RPM, UDF, WIM, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, XAR and Z format.
7-Zip Supports packing 7z, ZIP, GZIP, TAR and BZIP2 format.

program I have used for years. It can reduce the size of files to save disk space by compressing files in 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM file format.

7Zip File Manager - 7 Zip Download
Image: 7-Zip File Manager User Interface
Screen shot by Terry | PCDIY.com

The 7-Zip file manager is a friendly user interface, you don’t need to know how to use command line to extract or pack the compression files.
The main Features of 7-Zip

The greatest feature is.. Free! You won’t pay anything for it.
7-Zip supports unpacking 7z, ZIP, GZIP, ARJ, BZIP2, TAR, CAB, CHM, CPIO, NSIS, RAR, RPM, UDF, WIM, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, XAR and Z format.
7-Zip Supports packing 7z, ZIP, GZIP, TAR and BZIP2 format.
Multilingual user interface can be changed easily andfreely. It has localizations for 41 languages!
7-ZIP integrates with Windows Explorer to provide context menu when you right-click on the archive file, it is very useful feature.
New 7z format has high compression ratio by using LZMA compression technology, it has better compression ratio than any compression format.
7-Zip supports 256-bit AES cipher encryption in 7z and ZIP formats. It can increase the security for your archive.
7-ZIP provides self-extracting capability for packing files in 7z format.