Website data entry

I have around 20 spreadsheets that need to be converted into a specific format so we can upload into our website. The Variable Footwear is the format we need and the ACME is the format we need changed so it looks like the footwear format. the category, sub category and the sub sub category is causing problems when we go to upload. I am happy to answer any questions and look forward to seeing to working with the one I choose.