Ok, I now know that the .DAT file extension is not exclusive to a single program. Lots of companies use different programs to create DAT files.

My question to any CA employee: could you give us the tool, or provide information about the tool, to edit the DAT files used for STW?

I really like to mod STW since it is perfect for a Wars of the Roses mod. Seasons make the 30 year during war long enough, the Emperor can be edited into the Parliament, and it's just more atmospheric.

Thanks, Duke John