The file likely contains hidden information called , such as the date it was filmed, the device used, and sometimes even the GPS location. Common file name extensions in Windows - Microsoft Support
Most modern devices and software can open MP4 files natively: : Use Windows Media Player or the Movies & TV app. Mac : Use QuickTime Player . IMG_1536MP4
: The VLC Media Player is a highly recommended free, open-source tool that plays almost any MP4 file, even if it has minor corruption. Finding File Details (Metadata) The file likely contains hidden information called ,