Hessian file from CASTEP calculations?

Hello,

I have a naive question. I am about performing the normal mode analysis for crystals. Is there any chance of getting the force contants matrix from CASTEP calculations with Materials Studio (as in the case of DMOL3)? I cannot found such data anywhere (like *. hessian or *.hesswk). Is it possible to extract it somehow?

Best wishes,

Casper