What a let down. Part of this is due to shortcomings in the STL file format. There’s a newer format available, 3MF, and Josef Prusa and Jakub Kočí would like you to start using it.

Part of the reason, as many 3D printing enthusiasts know or quickly find out, 3D printers have evolved beyond the ubiquitous and simple STL file format. 3MF is an XML-based data format, as is ...

FBX: A format that is primarily used to interchange 3D geometry and animation files between various programs. It's primarily used with AR and VR but can be used for 3D print files as well.

MF, an  XML-based data format developed by the 3MF Consortium, has officially become an ISO standard: ISO/IEC 25422:2025.

PrusaSlicer has a new feature: the ability to import a CAD model for 3D printing. Starting in version 2.5.0-beta1, PrusaSlicer can import STEP format 3D models. An imported STEP file is converted t… ...

To access any given file, you may need to convert it to a new format. For example, something your colleague created on a macOS word processor might not work on your Windows 10 computer.