To use it, just a click to open a file and view what is inside. In brief, Zipeg is a universal free file opener for.zip and.rar files. How do i open zip and far files on mac? As my WinZip Mac was expired, I was looking for an alternative app to open zip files. Click on Services at the bottom of the Context menu, then choose Unzip. Unzip RAR files on your Mac from the Context menu With WinZip for Mac 2.0 or later, you can right-click (or press CTRL and click) your saved RAR files and use the Context Menu to unzip them.