The 3MF (3D Manufacturing Format) file format is an open-source file format specifically designed for 3D printing. It aims to provide a complete and unambiguous representation of 3D models, including information about geometry, materials, colors, textures, and other properties necessary for accurate and reliable 3D printing. Unlike older formats like STL, which only store surface geometry as a mesh of triangles, 3MF supports more complex data structures and metadata. This allows for richer descriptions of the object being printed, leading to better print quality and reduced ambiguity. 3MF files are typically stored in a compressed ZIP archive containing XML-based data files that define the model's structure and properties. The format is designed to be extensible, allowing for future enhancements and the incorporation of new features as 3D printing technology evolves. It also addresses issues related to unit consistency and data integrity that are common in older formats. The goal is to provide a standardized and interoperable format that simplifies the 3D printing workflow from design to fabrication.