I very much like being able to use ncviewer.com while inside of Carbide Motion app.
ncviewer.com is truly great tool. In a Macintosh only shop, it seems to be the best option. It’s usually open side-by-side with Carbide Motion.
When using Motion, click green box “LOAD NEW FILE”, in your file directory, find a .nc file, and click once to highlight file, hold the left mouse button down, (before clicking on OPEN box, or double clicking), you can NOW drag that .nc file outside of your directory, onto the ncviewer.com browser window, and preview your .nc file to any level of scrutiny, and then if all okay, open the file.
With 1,000s of .nc files to choose from, it pays to be sure before carving away. I have left-handed and right-handed parts, and they all have combinations of left or right, top or bottom, and front or back positions. So many combinations to ferret thru.
ncviewer.com has prevented a lot of potential wrecks.