https://www.langmuirsystems.com/downloads
You’ll need to download the post processor for Fusion 360 from the sport the page.
Go down to step A5 on this list
https://www.langmuirsystems.com/software/fusion
This topic also has a little bit info
And welcome to the forum @Keithvw
@72Pony you beat me to it by 10 seconds. Lol