If you use Google Photos or iCloud , type the filename into the search bar; these services often index the original filename even after you've moved the file.
Since this is a unique local filename, there is no public database that lists its specific contents. To identify what is in the video, you can: 56EC4783-A3DE-4BF3-9435-2EBD75852A33.MP4
The .MP4 extension indicates it is a standard digital multimedia container used for video and audio. If you use Google Photos or iCloud ,