Several CAD programs or even dedicated CAD converters support both the DXF and X_T format from Parasolid, so it should be no surprise that you can converted the first to the other.
Convert AutoCAD DXF Drawing Exchange Format to Parasolid model (text).
We have found 3 software records in our database eligible for .dxf to .x_t file format conversion.
Microsoft Windows software - convert dxf to x_t on Windows
A 3D modelling application
Convert from dxf 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 dxf to x_t. 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.
Autodesk Inventor is modeling application used to create 3D digital prototypes.
A set of 3D modeling tools