Delete the file and empty your recycle bin immediately.
If this was received via email, report it to your IT department or as phishing to your email provider. To give you more specific advice, could you tell me: M3liss@.rar
This is almost certainly malware , potentially a trojan or ransomware , designed to steal credentials or encrypt files, leveraging nostalgia or curiosity regarding the historic "Melissa" virus. Delete the file and empty your recycle bin immediately
Scan the file with reputable, updated antivirus software (e.g., Windows Defender, Malwarebytes). potentially a trojan or ransomware