How to Open .Rar Files on a Mac?
.Rar is a file format that is used to compress computer files and make them smaller. .Rar files can be broken up into equally sized parts for archiving and they can also be password protected. To open a .rar on your Mac, you usually need special software.
There are some free apps for mac users;
StuffIt Expander is always free to use and opens files created with WinZip®, 7zX, iShrink, SimplyRAR, Rarify, Rucksack (formerly iArchiver), BetterZip, RarMachine, GUI Tar, CleanArchiver, Springy, TarPit, RAR, Ez7z, Keka, and the compression utilities built into recent versions of Windows and Mac OS X.
UnRarX ( freeware )
Universal Binary version of UnRarX is now available. Version 2.2 includes current universal binary versions of unrar and par2 command line applications. UnRarX now includes automatic update functionality thanks to Sparkle Framework by Andy Matuschak.
RAR Expander is a free utility for expanding archive files with the .rar format (typically received from PC users). The Mac OS used to come bundled with software that could expand .rar files, but now you need to install a separate program–such as RAR Expander–if you need to work with them.