Thanks Steve, really appreciate you taking the time to answer.

Won't your suggestion only show the products selected in you filter though?

Let's say I've got 26 products A through to Z.

I want to know those customers that bought product B bought what else?

So in Excel I'm going to have Rows of Customers, Columns of Products.

I only want Customers who have bought B without losing the other products in the different columns.

Or do I misunderstand how you're using Excel (I'm thinking Pivot Table)

Regards

Giles