!!!Pack and unpack in 7z format with a Mac First open the Terminal app and type in:\\ \\ brew install p7zip\\ \\ The program itself is called: '7z'\\ \\ In Terminal you can type in:\\ \\ man 7z\\ \\ for further information. Please see below for a copy of the info, too.\\ \\ For a smart handling, please type in:\\ cd <path of the folder, you want to work with>\\ for example:\\ cd folder\\ Even more smart is to just type in 'cd ' (please don't forget the blank after the letter d and then just drag & drop the folder with the archive inside to the actual cursor position! That saves you a lot of typing! :-)\\ !!Example for packing For packing a file or an archive, please type in:\\ 7z a file.7z <path of the file>\\ \\ file.7z is the name of the archive which will be created in 7z format with the suffix 7z.\\ <path of the file> must be the path on your Mac leading to the file and file itself at the end, of course. The same is true when dealing with a folder. !!Example for unpacking For unpacking a file or an archive, please type in:\\ 7z x <path of the archive.7z>\\ \\ The program will then unpack the file 'archive.7z' in the same folder. !!Credits - Tomasz 'Kr0tki' Krasuski for telling us about the best packer available - Carsten Strotmann for sharing the knowledge on how to do it on a Mac as smart as possible !!References * [https://www.7-zip.org/download.html] * [https://sourceforge.net/projects/sevenzip/]