I'm a new user to indesign. I want to produce a product catalog. It will basically be our company letterhead for the "base" of the pages. On the pages I want to be able to insert pricing for the products that will come from excel spreadsheet cells. All the prices will be in one excel file that the catalog will link to the indesign pages so that I only have to update my price increases in one place. I have no clue how to go about doing that.