: Because it is an international standard, these files are compatible with almost all modern devices, including smartphones, TVs, and web browsers. How to Identify the Content
This naming convention is standard for many digital recording devices and software to ensure every file has a unique name based on the time it was saved.
: Surveillance systems often use these timestamps so that footage can be easily organized by date and time in the file explorer.
If the file won't open, use a versatile player like the VLC Media Player which supports nearly all MP4 encoding types.