The default source types in the standard edition are based on Wholly Genes' interpretation of Elizabeth Shown Mills's Evidence!
TMG allows each individual's entry to refer to a common source record, which can itself have an elaborate description.
The following options allow for some form of direct transfer of TMG files, possibly limited, apart from GEDCOM.
Several software developers have created companion products specifically for TMG that enhance its functionality.
These products include: TMG data output is compatible with a range of geographical mapping and genealogical reporting applications that support the GEDCOM format.