Opening such files can lead to ransomware that encrypts your data, Trojans that steal your passwords, or malware that spreads to your contacts. 2. Safety Checklist
In a file with two extensions, only the last one matters to the operating system. If the full name were actually OFFICE AFFAIR.mkv.exe , your computer would run it as a program rather than playing it as a video.
If you have encountered this file, follow these steps to protect your device: