Spaltenamen einer Struktur bekommen

DATA columns         TYPE if_fdt_doc_spreadsheet=>t_column.

DATA(desc) = CAST cl_abap_structdescr( cl_abap_structdescr=>describe_by_data( struc_from_itab ) ).
     LOOP AT desc->get_components( ) ASSIGNING FIELD-SYMBOL(<c>).
       IF <c> IS ASSIGNED.
         IF <c>-type->kind = cl_abap_typedescr=>kind_elem.
           APPEND VALUE #( id           = sy-tabix
                           name         = <c>-name
                           display_name = <c>-name
                           is_result    = abap_true
                           type         = <c>-type ) TO columns.
         ENDIF.
       ENDIF.
     ENDLOOP.