How to Open and Extract RAR Files on Mac The RAR format is proprietary, so it’s no surprise that Mac systems don’t come with a built-in utility for handling them.
If you can't install Unarchiver for some reason, you can use the free StuffIt Expander application instead. Luckily it’s easy to open on Windows if you know how.
Whether you are an avid Mac programmer using a Windows PC, or you just found a DMG file on your Windows machine, it can be useful to know what it is and how to open it.
