If you are trying to run this specific software today, note that Matrix 6.0 was discontinued years ago and replaced by MatrixGold , which runs on newer versions of Rhino (currently Rhino 8). 3dm files from Matrix 6 into modern software? Transition to MatrixGold - Gemvision

were once industry standards for 3D jewelry design, Gemvision officially discontinued the Matrix line in September 2018. It has since been replaced by MatrixGold

: This version is a 32-bit application. To run it on modern systems like Windows 10 or 11, it typically requires Windows XP SP3 Compatibility Mode

(Rhino), a powerful NURBS-based 3D modeling engine developed by Matrix 6.0 SR2 (Service Release 2):

You can install a of the latest MatrixGold. It includes an importer for Matrix 6.0 files. Open your legacy models, then save them as clean Rhino 8 .3dm files. This removes dependency on the cracked old version.

: Includes pre-built templates for creating professional jewelry animations.

: Unlike base Rhino, Matrix 6.0 provides dedicated builders for pavé layouts , prongs , and ring sizing , significantly reducing the time required to build standard components from scratch.

Matrix 6.0 SR2 introduced specific modeling features like "Smart Flow" and "Surface Pullback" that were groundbreaking for jewelry workflows at the time. Modern Alternatives