Exporting a structure from CST to HFSS

Please any1 help me in exporting a structure fron CST to HFSS. Since it has different layer settings i am in confusion.
Help me

you have to select all parts in the navigation tree then choose in modeling tab export to sat but choose version between 18:20 it is near the name file. (because hfss work with version older then cst). or if you have the new version export to parasolid x_t. then you can import it in Hfss look for import under one of menu parts.