The original software for creating and opening RAR files; it offers a free trial that remains functional.
A popular free tool for macOS users to extract RAR files. 2. Steps to Extract Content Guide to opening rar files - Avira Momokun - Meiko (Prison School) (mitaku.net).rar
Since this is a .rar file, you should use one of the following reputable applications: The original software for creating and opening RAR