I have 300 rows, and 40 columns. the columns are different product categories (e.g., 1, 2, 3, ...), and the rows are different individuals. the data are either 1 or 0. 1 means that the individual bought that product, and 0 means that individual didn't buy that product. I need to create a table that shows all the product combinations (e.g., 1,1; 1,2; 1,3; 1,4; ....2,2; 2,3; .....), and how many individuals have purchased both products for each combination. Is there a macro that can achieve this?