: If you received this file from an unknown source, it is recommended to scan it with antivirus software before opening it, as media files can sometimes be used to deliver malware.
Can you provide more about where this file came from or what it is supposed to contain? How to play MP4 files in Windows - Microsoft Support tow9FC.mp4
: If the file won't open, the VLC Media Player is a highly recommended free tool that supports almost all video codecs. : If you received this file from an