It allows your customers to attach and upload files during the purchasing process. How I can benefit from it: Your customers will be able to request a custom product by attaching PDF files, documents, images, graphics files, etc. to the order; You will be able to manage easily custom orders by getting files and information sent by the user and attached directly to the order page of your e-commerce bypassing any exchange of emails with the user to send files outside the site); You will be able to decide whether accept the attached file or not and start a communication with the user through the order (useful to ask for further details, provide additional instructions, give feedback about the order, etc.)