Did you download this on purpose? If it arrived as an unexpected email attachment or from a sketchy website, do not open it.
A completely free, open-source alternative that handles almost any compressed format (Windows). CD_FH.rar
If the file demands a password to open and you don't know it, it is often a sign of spam or malicious content. 🔓 How to Open a .RAR File Did you download this on purpose