amazing upload !https://addons.prestashop.com/en/data-import-export/5732-xml-feeds-pro.html
Export products/orders/categories/customers to XML files. Compatible with Google, Facebook, Skroutz, Mirakl, Public, Fruugo, Beslist, idealo, PriceRunner, Spartoo, Trovaprezzi and much more.
You can always change the settings and create an individual XML.