My file was corrupted and cannot be opened.

Did anything else happen? Was the computer restarted? Was there a power outage?
Unfortunately, this file cannot be recovered.

This file consists only of zero bytes.
Check the following locations (Windows) to see if there is a backup file:

C:\Users\{YourUserAccount}\AppData\Local\MuseScore\MuseScore4
C:\Users\{YourUserAccount}\AppData\Local\MuseScore\MuseScore4\cloud_scores
C:\Users\{YourUserAccount}\AppData\Local\MuseScore\MuseScore4\cloud_scores\.mscbackup
C:\Users\{YourUserAccount}\Documents\MuseScore4\Scores
C:\Users\{YourUserAccount}\Documents\MuseScore4\Scores\.mscbackup
C:\Users\{YourUserAccount}\Documents\MuseScore4\Cloud_Scores

Note: The “AppData” and “.mscbackup” folders are hidden. Ask your preferred search engine how you can make them visible.