Hi,

I have a problem...I want to do the difference of stock value in two columns wich they are in two different excel file. In file1.xls there are products and how many exists and the other one contain products and how many must be (minim stock). I need to find the difference between e.g. book1....6pcs and book1......3pcs.
iF YOU HAVE SOME TIME FOR MY PROBLEM, please give me an exemple.

Thanks a lot!