I downloaded the arduino and the latest firmware on a windows 10 laptop. Directions say to click the CNCctrl file and open it. This only gives me a prompt to choose what program to open file with. I am stuck in this spot. I don’t have knowledge of linux or programming skills, but competent enough to usually figure this out. I am a shop teacher and ready to get the maslow up and running as kids come in two days. ANy help will be appreciated.