It should be quite possible to convert CAD data from Parasolid X_T format to ISO STEP product data format. One of the best choices would probably be Autodesk Inventor that supports well both formats and can work with them. The other option would be to some some dedicated CAD conversion and data translation conversion program like the Cross Manager.
Convert Parasolid model (text) to ISO-10303 STEP product data.
We found 6 software records in the database related to .x_t to .stp file format conversion.
Microsoft Windows software - convert x_t to stp on Windows
Autodesk Inventor is modeling application used to create 3D digital prototypes.
Convert from x_t file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned x_t to stp. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A 3D geometric modeling component software
A dedicated CAD converter
A CAD converter with huge format support
A CAD visualizaton, analyzation and translating system
A CAD conversion software