Hello雪飞 张
This can occur when there are hidden user locks associated with the file. You might check for hidden locks on the shared Excel file.
In Excel, go to the "Review" tab, and in the "Changes" group, click on "Share Workbook."
Under the "Editing" tab, look for a list of users who are currently editing the file, remove user. If your name appears there, it means there might be a hidden lock associated with your user.
Best regards,
Karlie Weng