Files with these specific alphanumeric strings are often the result of downloads from platforms like WhatsApp, Telegram, or Discord , which sometimes rename files during compression or encryption.

Consider where the file came from. If it was an unsolicited attachment in an email or a random download, it is best to delete it immediately.

Right-click the file and select Properties (Windows) or Get Info (macOS). Look for the "Origin" or "Media" tabs to see if there is information about the encoding software or the date it was captured.