Hi, I'm new (1st time use) to bartender.

I'm using excel file to print. I already design a template, and for a while it looks good.

But now I have an issue, for example:

I have 2 excel files which is already put a formula to detect if it is no duplicate. But the problem is, there is a duplicate, but in different file. A number 12345 occurs on Excel#1 and Excel#2. So after I print both excel files, I have 2 label of number 12345.

How to manage this, so it will not happen again. Please advise.