The file typically contains no audible sound or plays as a short burst of silence when opened in standard media players.
If they keep reappearing, check for recently installed apps or those with "Storage" permissions. You can use the Files by Google app to track when and where new files are created.
What is EVT_IO_INSTALLATION.mp3 - Files by ... - Google Help
She fast-forwarded to the three-minute mark.
minimodem -f evt-io-installation.mp3 --rx 1200
