I need to have two columns of part numbers, one part number with a straight, unbroken 12-digit string (ie. 444455556666), and I need the other column to insert dashes between every fourth digit (i.e. 4444-5555-6666). I'm pretty sure this needs to be done with VBA, but I'm a bit rusty with VBA. I already have the initial column of unbroken digits, I just need to create a new column with the inserted dashes. Thanks in advance.