Not quite sure what the question really is, but Digital File Pro is used to add File manipulation capabilities (upload, download or Delete) to your web pages.
you can add the File Upload behavior to your data assist inserter or update pages in order to upload a file that is associated with record. it could be a product image, or a users resume.
the file is uploaded to the server, and the file name is inserted to the database.
see the "How to apply Digital File Pro to DataAssist Insert and Update pages" tutorial on the data assist support page for more details: