: If it won't play due to a missing codec, the VLC Media Player is a highly recommended free tool that can handle almost any MP4 encoding. 3. Managing and Renaming

The filename appears to be a standard MP4 video file , likely automatically named by a recording device like a smartphone, digital camera, or security system using a timestamp-based format. 1. Understanding the Filename

: Use QuickTime Player or press the Spacebar for a Quick Look preview.