A .rar file (Roshal Archive) is a proprietary compressed file format used to store one or more files and folders together. They are commonly used for:
If you can share where you found this file or what it's for, I can provide more specific advice on how to handle it, such as or finding a specific password . RAR - Википедия EOJEXBV rar
Because .rar is a proprietary format, you need software to extract it. you need software to extract it.