just was given a .nc to use and cant find where the file> etc is in the installation instruction states
NC. is a text file format for Gcode. If that is what you are talking about, click on the little box with the arrow in it that is located in the tools on the left. When opened, click on Gcode and if it is grbl compatible, it should load into easel.
I’m just guessing here, but if your CAM program has a Grbl post processor, then that g code should load into Easel.