Hello!

I have two workbooks. I want to compare first column in each workbook and delete values which founded in second workbook , from first workbook's first column.
For example
I have :
Workbook 1 | Workbook 2
A B .... A B ....
551 450
820 551
450
780
990

Result will be :
Workbook 1 | Workbook 2
A B .... A B ....
450
820 551

780
990