Hi Steven This shouldn't happen really as the same logic is used to create the list of products in the excel file as in the products page. I can't reproduce this here so can you send me the site FTP login to my email (vince AT ecommercetemplates DOT com) and details about how to reproduce this.
Hi Steven I think I see what this is and it's just that the product id's that are replicated are those whose stock is set to product options so each product id is listed as many times as there are options.