HFSS to Grasp9 Tabulated File format

I have got a far field radiation pattern of the horn in HFSS. How can i transfer this pattern into trica grasp9 ?

I understand that for HFSS, we can use export text data. While for grasp9 we can use tabulated input. But what is the require format to link them together ?

Thank you.

i am working on grasp9 for design of a single reflector antenna, i have radition pattern of feed horn calculated from another software, i am using tabulated feed pattern object to input the filed pattern of horn , i have used 5 phi cuts when grasp reads this file it reads two cut patterns but when third cut pattern starts it says there is error on line 366 , either data or file name is incorrect.If any body used tabulated feed pattern option , and encountered such problem , if yes can u help me out of this problem