By default, all software supports multiple file extensions. Trainz Classics supports at least 2 different file extensions. The basic files that Trainz Classics supports are .CDP. However, not all of the extensions listed on the list are always used to save the effects of work in Trainz Classics. Very often, files with such extensions are used as source data files used by Trainz Classics.
Trainz Classics can be used to convert file formats between the file extensions listed below. You can open a file with one of the file extensions below via Trainz Classics and try to save it in another file format, also supported by Trainz Classics.