TransMagic does not currently support writing to the Pro/e* .prt* or .asm* formats natively.  We have plans to add the ability to write to the Pro/E neutral 3D modeling kernel format */neu in the future.  In the meant time, TransMagic can convert to several other 3D geometric formats supported by Pro/E such as STEP*.stp, ACIS*.sat and Parasolid *.x_t.