loadtl

Dear all

I have a basic doubt can anyone clarify, for the below function from where does the function search for data , whether it search from .NCL File.

Please help me to understand.

      WHEN/(ICODEF(LOADTL))

        TOOLNB=POSTF(7,4)                  $$ Get tool info.

        FIVWOD=POSTF(7,5)

        SIXWOD=POSTF(7,6)

thanks in advance

E.Paulson