I think this may be a bug.
When I export a GDF file, if labels have the comma character ',' as
part of it, and as labels not exported inside quotes, then I try to
open this file, it will give errors because of this character.
Also, I don't know how to quote the single quote when write a GDF
file. Sorry, but I couldn't find this in the manual.
Thanks for nay help,
Gutemberg