If necessary, you can remove a data file from disk.
Warning: A deleted file cannot be restored with the Undo command. Be sure you want to permanently remove the file from disk before you attempt to delete it.
To remove a file from disk
On the Files tab, right-click the file you want to remove permanently from disk, and then click Delete.
A message appears, prompting you to confirm the action.
If you are sure you want to remove the file from disk, click Yes.