123DX STL
File conversion

Convert 123DX to STL

QUICK ANSWER
Is it possible to convert 123DX to STL?
Yes - 123DX converts to STL.

Open in Fusion 360 after uploading, then File → Export → STL. 123D Design itself had a direct STL export. STL is required for 3D printing.

Also to STL: P21 · MEB · STEP

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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How to convert 123DX to STL

Converting a .123DX file to .STL lets you open the content in software that prefers the .STL format, though some details may change compared with the original. We are still putting together the list of programs that handle .123DX files.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

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