: Right-click the file and select Properties > Details (Windows) to see the origin, date created, or specific video codecs like H.264 used within the file.

: If this is a reference for a school or workplace, check the associated dashboard or learning management system (LMS), as "23835" may be a unique database entry number for a lecture or training module. About MP4 Content

: Use versatile tools like VLC Media Player or Windows Media Player which support the .mp4 container format.