You will need archive software such as WinRAR (Windows/Android), 7-Zip (Windows), or The Unarchiver (macOS) to extract the contents.
If this file was downloaded from an untrusted source, it is crucial to scan it with antivirus software before opening, as archive files can sometimes contain malicious content. If you can share: Where you found this file (website, email)? What you were expecting it to contain? I can help determine if it is a safe or legitimate file. 362rar
Typically used for software, large datasets, or media files. You will need archive software such as WinRAR