Where did you this file from? Providing that detail might help me identify its specific contents. How to Create and Open an MP4 File
Apps like WhatsApp or Instagram often rename videos with long numeric strings when you save them to your device. 72047-_1668906202.mp4
If you downloaded this for a project, check your "Downloads" history on sites like Canva or Adobe . Where did you this file from
Discussion forums, such as the Betheme Support Forum , note that similar numeric naming can occur during website video exports or server-side processing. such as the Betheme Support Forum
Tools like the free VLC Media Player are highly compatible with MP4 files if your default player fails.
Right-click the file, select Open with , and choose a media player like Windows Media Player .