excel import problem in field having datatype time

vyanku

I am importing one table containing two fields time in and time out.
and datatype is time.
When I am trying to export that table through excel mapping tool it dosent shows fields having datatype time.
If we insert it manually in excal mapping tool and export the defination then it export it .
But when I am trying to import these fields it dosent import the time field values.

Please suggest any soln........