The writeworldfile is a very useful command but you need to be diligent about naming this correctly before importing into TBC otherwise you are left with an atrocious name or have to rename the file and worldfile before sending to the field. Is there a way to rename this referenced file? I tried but I was then left with a green outline because I broke the link. Looked like there was no way of resetting this. Getting a UI for writeworldfile would solve a lot of this by pulling from the new name in TBC that we can change.