The RAR format is popular among Mac users and is generally used by anyone who wants to compress files and save disk space. But unfortunately, Mac itself does not have a native program for decompressing RAR files.
So let's take a look at one of the best programs for Mac, Commander One.

Commander One is a very convenient tool to open all archive files and easily manage all your data, including PAP files. It has a convenient interface and its arsenal has many functions that will help you in your work.
You can view an interesting and informative article, I hope it will be useful https://ftp-mac.com/how-to-open-rar-on-mac/