Converting files to .STL is primarily a workflow used in dental CAD software like exocad . .SDFA files are proprietary library files (often from TruAbutment) that contain dental anatomy data. How to Convert SDFA to STL in exocad

: Most slicers (like Cura or Bambu Studio) cannot read SDFA but natively support STL. Cross-Platform Design

Find out which software produced the file (look at file properties -> Details). Email support and ask: "Can you provide a plugin or script to export .sdfa to .stl?"

Historically, older iterations of the software permitted a native workaround within the application's interface. If you maintain access to legacy systems, this remains the cleanest, highest-fidelity path to generate an STL asset. Step-by-Step Instructions:

Isolate the specific scan body or library asset on the screen.

STL files open instantly in standard CAD programs like Fusion 360, Blender, and SolidWorks.