: If you have already downloaded the file, do not open or extract it. Viruses within .rar files generally cannot infect your system until they are unarchived.
: Ensure you are using the latest version of extraction software like WinRAR or 7-Zip to avoid known security vulnerabilities. About .RAR Files
Knowing where it came from can help determine if it is a legitimate file with a typo or a known scam. How to Open RAR Files on Windows, Mac, and Mobile - Avast