Scan the file with reputable, updated antivirus software (e.g., Windows Defender, Malwarebytes).

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.

If you have downloaded this file, do not extract or run it .

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:

did you find this file (email, file-sharing site, etc.)? Have you already executed or extracted the file? This will help me suggest the best security steps.