: If the file won't open, the VLC Media Player is a highly recommended free tool that supports almost all video codecs.
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 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. : If the file won't open, the VLC
: Most modern operating systems can play MP4 files natively using applications like Windows Media Player or QuickTime Player . : Most modern operating systems can play MP4
If you are looking for a "review" in the sense of how to view or manage this file, here are some standard tools and practices: