Parasolid CAD formats, including X_T and X_D formats, are well supported in many CAD programs or dedicated conversion programs and as such it should not be hard to find a software capable of X_T to IGS conversion.
Convert Parasolid model (text) to IGES 3D exchange format.
We have found 7 software records in our database eligible for .x_t to .igs file format conversion.
Microsoft Windows software - convert x_t to igs on Windows
A CAD converter with huge format support
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 igs. 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 3D CAD translation softwate
A dedicated CAD converter
Autodesk Inventor is modeling application used to create 3D digital prototypes.
A CAD visualizaton, analyzation and translating system
A CAD conversion software