In Didger 5, all of the attribute fields are exported to DAT format. If this is not what you're seeing, please email your file to email@example.com along with a description of what you're doing.
In Didger 4, the DAT export only supports 4 IDs, so you get the X and Y data plus the PID, SID, 3rd and 4th ID fields. You can upgrade to Didger 5 if this is a workflow you will be using frequently. As a workaround, you can export to a DAT file and a SHP file. The SHP export will also create a DBF file that has all the ID information in it. You can then open the DBF file and copy and paste the information into the DAT file. The DBF only contains one attribute per object, so you will need to have the same attribute for all vertices in each object in order to use this workaround.
Updated: April 30, 2018