Inside dmodels/src/level_editor, there are some files related to Toontown, any reason for this or Disney just forgot to remove them? 
These are old, abandoned files. They remain mainly as an academic reference for anyone building a similar tool, but you probably won’t be able to run them directly as-is.
David
This is an older post, but thought I’d include my 2cents on these. If it’s the directory I’m thinking of, there are *.FLT files in there? Those can be opened up with PVIEW. They are nothing more that 2D PARTIAL over views of the respective playgrounds.