I can help you investigate further if you know the website or software it is associated with.
If you don't recognize the source, keep it closed. 16036.rar
If you are certain the file is safe, you will need a third-party utility to extract it, as Windows and macOS do not always support .rar natively: Free and open-source (Recommended). WinRAR: The original tool for this format. The Unarchiver: A popular choice for Mac users. I can help you investigate further if you