ive cut it before, however the edges were not going to be visible so i didnt try my hardest to get a good finish
i asked the advice of the guy making the carbon fibre and he said to use masking tape on the area you are cutting to avoid chips and not to scratch the surface
he also said to use a fine toothed jigsaw blade that is brand new, dont use a worn one, and then cut maybe 1mm inside what size you actually want, then use fine grade sandpaper to get the edges just right