Hi to everybody. Where can i find the file with the gcode that laserweb

Hi to everybody.

Where can i find the file with the gcode that laserweb produce to let the laser work?
The machine gives me an error when it end " error: 20 - unsopported or invalid g.code command found in block. I’m using grbl vers 1.1e on a eleskmaker. in gcode end i have M18.

There’s a button to view/download the GCode from the files tab.

If you want to change the gcode generation (Headers and Footers) you’d go to the Settings Tab