If this is a file you found, it is an video file. To see what it is, you would typically need to: Open it with a media player like VLC or QuickTime.
: Right-click the file (on Windows) or Cmd+I (on Mac) to see the metadata, which might list the "Title" or "Author." 23452mp4
: If you downloaded it, look at your browser history or the website where you found it to see the original title. If this is a file you found, it is an video file
Could you share or what kind of content you expect it to be? Knowing if it came from a specific app or website would help me track down the details for you. 23452mp4