VBA Deleting Row In Another Workbook If Number Matches

I am using a userform to pull some data from a form that many different workers fill out. I have a button on the userform that automatically saves certain cell values in the form to a different workbook when they hit this button (they hit it every time after they are done filling it out)....The problem is that if they need to go back and make changes to the form they originally created, the workbook that has all the data will now have two entries for the same form number (when they hit the button it also saves the workbook as NCR####) but I only want the most recent one..

So what I need to make it so that if two numbers in column C (C2 and on) of workbook "NCR_Data.xls" match that this macro deletes the one furthest from the top (my code places newest entries at the top, in row 2).