Delete matching numbers from excel file via batch file or VBA

Hello,

I have 2 excel files in one specific folder named as A.csv & B.csv.

There is a column Ref in excel file 'A' and Proj column in excel file 'B'

Ref column in excel A has numbers e.g. 9826218802031230101, 9826218803031230101 and so as Proj Column in excel file B.

I want to compare these 2 columns via batch file and create another excel file which will delete any matching number between these 2 files of numbers which have '02' in the position 9 & 10.

I will be very thankful.