Steps in Perfect World

I'm trying to extract the gfx.pck game Hot Dance Party for adapting the effects of lights in Perfect World.

http://steps.cubizone.com/eng/

I used some already posted here on RaGEZONE, but did not succeed. I can only extract Correctly models.pck and others. Pck the gfx.pck does not extract Correctly, when i open it with Notepad + + or Hex Work MadEdit and it shows 0 bytes in Notepad + + and it is blank.

Could anyone help me? Already tracked the effects of light and intend to create a custom band for Perfect World.

Note: I have created 3 types of extractors no longer worked properly.

I'm not trying to copy, just liked the idea.

It has been used in EmprisePW and PwHits.

I count on your help!
Thanks,