Are you trying to get code from MC9 files into Mach2?
MC9 files are propriatary to Mastercam. You can't use them with other software.
You can export the geometry though, and post the NC code, or even export the native NCI code (if you have a way to import it to Mach2)
If you just can't get the post in MC to do what you want, post something over in the MC section and we can get it dialed in for you.
Matt
San Diego, Ca
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(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)