Importing of files for PCB milling (.gbr file into gcode)

I use sprint-layout 6 to create pcb designs and boards and want to mill them, i have the cnc set up and all tests are good.
I can save the design in sprint as a ( test for first PCB_copper_bottom.gbr ).
how do i get that .gbr onto easel to cnc the shapes etc, prob very simple question to you but i cant find how to do it.
please advise

Sounds like you need a converter: