: Right-click the file, select Properties (Windows) or Get Info (Mac), and look at the "Details" or "Metadata" tab. This often lists the Artist, Album, and Year.
If you are trying to find the artist or source of this specific file, you can try the following:
: Websites like Epidemic Sound, Audio Network, or Pond5 often use numeric strings to track tracks. If you downloaded this from a stock music site, the "15700" is how the database identifies that specific composition.