Dear Rufus

Thank a lot for your immediate reply.
I read some part of the manual included in EXTRACT (a PDF file with 42 page) section.
But (!)
But , I could not get what should i do !
if I should apply the provided keys in my DATA file, how to do that? I mean it is not saying that after applying keywords "for example x" in DATA, what will it generate?
i got confused here: confused:
Is it possible for more hint and help or another approach.

Regards