To review the file, you need to see what is inside. Since .rar is a proprietary format, you will need third-party software like WinRAR or 7-Zip .

: Upload the file to VirusTotal to check it against dozens of antivirus engines.

If this file is part of a larger project, mentioning the software version or date modified of the internal files adds professional depth to your review. RAR – Apps on Google Play

A simple "Recommended" or "Avoid" based on whether the file fulfilled its purpose.