At the moment PostScript, EPSF and the TCM format is generated. TCM only reads its own format.
The TCM file format is specified in appendix B. If you take a look into a saved file, you will see that it is almost human-readable. Furthermore, it reflects the structure of a repository for TCM models, consisting of multiple documents. Each diagram file has four distinct parts: storage information, document information, the graph and the representation. Each table file has five distinct parts: storage information, document information, overall table information, the columns and the rows. With a little bit of imagination one can see many possible programs interfacing with TCM via this file format.