i made nc file with meshcam from stl file my question is this could i repeat the same file 2 or 4 or more with x or y offset and then the cnc stop a other way to ask is if my file is 2x2 and the pice of wood is 2.5 x 12 so my file will be repeat 6 time and stop to change the peice of wood thank you jacques

Yes - you can repeat the same program with different offsets.

Have a look at the tutorial on offsets and experiment a bit.

The other way is to have your cutting program as a sub routine, and set different start co-ordinates then call the sub routine.