3D model format used by Mastercam X and X2 CAD/CAM software; used for developing 3D models of parts, molds, and fixtures; may contain solids, surfaces, and wireframe data; commonly referred to the MC-X format. MCX files are also supported by CATIA-CADAM software.
The MCX file extension is associated with Mastercam. Mastercam is one of the most commonly used CAD/CAM software worldwide and remains the program of choice among CNC programmers.