If you can provide more context (e.g., where you downloaded it, what you expected it to contain), I might be able to help you find more information.

If you can tell me or what you were expecting it to be (e.g., a game mod, a software patch, a document), I can try to help you verify if it's safe or guide you toward a trusted source.

I could not find any specific, credible reviews or information for a file named "cross2.rar" in my search database.

this file unless you are absolutely certain it is from a trusted source.