User753101303 posted
Hi,
This is a backup file? You could use SQL Server Management Studio or the Transact SQL "RESTORE" statement to restore this db. If you tried and it fails which error do you have.
Are you sure your hosting service or Plesk doesn't give any indication about the file created by this "dump" function (for now I assume it is produced by the BACKUP statement).
For details try
https://msdn.microsoft.com/en-us/library/ms187048.aspx and scroll down to "restore data backups". It migght be a bit longer to create a script but the benefit is that you'll be able to run the script again and again without having to go through UI
options each time.