How to Open STL Files in PowerPoint
Microsoft PowerPoint (Microsoft 365) can place 3D models on slides, where they can be rotated and animated with the Morph transition.
Short answer · Built in
Yes. PowerPoint opens STL files as shipped: Insert › 3D Models › This Device….
Import STL into PowerPoint, step by step
- 1Check the fileFind out what units the part was designed in. Almost every printable STL is in millimetres, but the file itself doesn't say.
- 2Import into PowerPointInsert › 3D Models › This Device….
- 3Check scale and orientationPowerPoint works in resized to fit the slide and is Y-up. STL files are unitless (slicers assume millimetres), so the size depends on what the exporter assumed.
- 4Check materials and animationSTL carries no colour or materials, and no animation. Look at the model under a neutral light before you build on it.
What comes through
| Shape | Yes, always. |
| Colours and materials | No: STL has no colour or materials. |
| Textures | STL doesn't store texture images. |
| Animation | No: STL has no animation. |
Things to watch for
- STL has no colour, so PowerPoint shows it in a plain material.
- Use the Morph transition between two slides with the same model at different angles for a smooth spin.
Questions
- Does PowerPoint support STL files?
- Yes. PowerPoint opens STL files as shipped: Insert › 3D Models › This Device….
- Why is my STL model the wrong size in PowerPoint?
- STL files are unitless (slicers assume millimetres), while PowerPoint works in resized to fit the slide. Scale the model after importing, then apply the scale before you continue.
- What is the best 3D format for PowerPoint?
- GLB and FBX are the most reliable choice for PowerPoint. If you have a choice when exporting, pick GLB over STL.
Menu names follow Microsoft's current release. Check the official PowerPoint documentation if your version differs.
Written with AI assistance by the Renderlyst team in October 2026. Format support reflects each app's current release as we understand it, and we link the official documentation so you can confirm it for your version. Spotted something out of date? Email alishbakhalid766@gmail.com.