Inside, you may find a clean video.mp4 or a folder named work/ with multiple MP4 chunks.
Check for corruption and recoverable data archivefhdjufe568 3mp4 work
This is a variation of the common .mp4 video format. The "3" may signify a specific version, a compression tier, or a segmented part of a larger video file (e.g., part 3 of a series). How These Video Files Work Inside, you may find a clean video