One other possibility if the users have MS Office installed they can use Microsoft Query to do what you want there is a menu option that allows the data to be editable.
That being said I have to agree with Terry, giving the users the ability to edit data in that fashion is a disaster waiting to happen.
If this is the course you follow I suggest backing up very often, and making sure you spend a lot of time on security so the users can only change fields/tables they have the right to change.