I have a large spreadsheet in excel. A:6 through AF:337. Each column has members that are in each other column but each column also has outliers. I want to find a way to export this information by common occurances or find some way to view the matching members. For example I would like to see "X member exists across columns A B C D E K J AH ect ect." Essentially, I'm trying to find the group of memebers that exist across all columns.