# `STEP` file manipulation (Tutorial 20)

Import and manipulate a `STEP` model using `OpenCASCADE`.

[**Download the STEP file used in this tutorial**](https://gitlab.onelab.info/gmsh/gmsh/-/raw/master/tutorials/t20_data.step?inline=false)
### Python
```python
{{#include ../../../../tutorials/python/t20.py}}
```
