I have written some simple software to manipulate planimetric polygons. I’m running 8.6 and the online help files seem to only partially correspond to what is actually in the headers of these files. As an example, there are fields after the polygon ID which are not documented nor are two fields in the header which turn out to be the area and perimeter of the polygon. There are some fields at the end of each polygon (integers) which are also not documented.
Finally – I’m looking for a flag somewhere in the exported file that determines the units – feet, metres, furlongs etc!