7zip is an open source software. By using this software, you can already make high compression / packing-unpacking with the support of various formats. In 7zip there is also a plugin for the far manager, and has extraordinary capabilities in accessing the file manager.
Files that can be packed and unpacked by 7zip are 7z, XZ, BZIP2, GZIP, TAR, ZIP, WIM and various other archive formats.
