3mf
What is a .3mf file?
model/3mf
3MF (3D Manufacturing Format) is a modern XML-based 3D printing format packaged as a ZIP archive, designed to fix STL's limitations by including color, materials, units, and multiple objects. It carries full model and print metadata in a single file. It is increasingly the preferred format for 3D-print workflows.
How to use a .3mf file
Use an example 3MF to test ZIP-package and XML parsing, color and material handling, and modern slicer or print pipelines that preserve rich model metadata.