!!!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/] !!Infos from the Terminal app NAME 7z - A file archiver with highest compression ratio SYNOPSIS 7z [adeltux] [-] [SWITCH] <ARCHIVE_NAME> <ARGUMENTS>... DESCRIPTION 7-Zip is a file archiver with the highest compression ratio. The program supports 7z (that implements LZMA com- pression algorithm), ZIP, CAB, ARJ, GZIP, BZIP2, TAR, CPIO, RPM and DEB formats. Compression ratio in the new 7z format is 30-50% better than ratio in ZIP format. 7z uses plugins to handle archives. FUNCTION LETTERS a Add d Delete e Extract l List t Test u Update x eXtract with full paths SWITCHES -ai[r[-|0]]{@listfile|!wildcard} Include archives -ax[r[-|0]]{@listfile|!wildcard} :