Fire control installation

I finished the assembly of my machine I more or less metrized fusion 360 to create a first simple piece for my 1st tests
I can not install the fire-control post processor I follow everything exactly but impossible with grbl it works I do not understand the file is well downloaded but fusion do not see ?? on the photo we are on the pc I also tried with fusion on the net but ditto I do not get it ???

Fire control is not your post processor.

Fire control is used to run the table. It is a separate program that needs to be installed by itself.

The post processor is installed in fusion360 to create the correct g code for the cross fire.

I believe the post processer will be file extension *.cps


thank you!! I suspected a software problem I speak very poor English and the translators are not always very precise thank you!