Free RAR opner always supports only two or three formats of unzip files and only satisfy the basic need of decompressing and compressing files. There are many free RAR opener software, but I don’t think it is wise to use these free software. So this article will recommend you a RAR opener software and show you how to open RAR files on Mac. As the question indicates, we need to find a RAR opener to open RAR files for Mac. “Which is the best software to open RAR files on Mac OS? I am new to Mac and I want to open RAR files.” A question from Ask Different.Ĭompressed archive files such as RAR and ZIP files are widely used to reduce the size of files when sending them over the Internet.