How to Uncompress a RAR File

RAR is a proprietary archive file format that supports data compression, error recovery and file spanning. It was developed by a Russian software engineer, Eugene Roshal. RAR stands for Roshal Archive and the RAR software is licensed by win. rar GmbH.

Source: Wikipedia

How to Install RAR

macOS

$ brew install unrar

How to Uncompress a RAR File

$ unrar x <filename>

Source(s): superuser