There is no single "Trainz CDP Converter" app from N3V. Instead, the community relies on a mix of built-in command-line tools and external GUI applications.
There is no standalone "Trainz CDP Converter" software. The term is a misnomer for the installation process.
Limitation: TrainzUtil cannot downgrade a CDP from T:ANE to TRS2004. It only moves assets in/out of your current version’s database.