How to remove a password from a password protected MPP file directly from a Cloud file picker?
You can remove the Password from a MPP file directly from a Cloud file picker by going to menu File – Save As and selecting any Cloud storage location (Drive 365, Google Drive, etc.). Click on the “Options…” button and delete the password then click the “OK” button. In the “Remove password confirmation” dialog click “Yes” to remove the password and “No” to keep it. Click on the “Save” button to save the changes.