What do you mean with "method"? The method how to upload the dbase files here? Pack them together into a zip which you can upload under "Attachment and other options" here, if the size of the zip is less than 500 KB. If it is larger, upload the file to some cloud server (google drive, dropbox, onedrive, or so) and post the link. If you do not want to publish the file send me a PM with the link.