If the file won't open, use VLC Media Player , which supports almost all video codecs. Technical Characteristics of MP4
It likely contains high-quality video and audio tracks, along with metadata Cloudflare . 5f2bfcc122850f12a70a2_source-wAZRe073.mp4 ...
Look for this file in your "Downloads" folder, browser cache, or cloud storage (like Google Drive or Dropbox) where it may have been auto-saved. If the file won't open, use VLC Media