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 # export\_stl

 Last update: 20.02.2026 

<a id="ansys.meshing.prime.FileIO.export_stl"></a>

#### FileIO.export\_stl(file\_name, params)

Export an STL file.

- **Parameters:**
    
    **file\_name**: Path to the STL file on disk.
    
    **params**: Parameters for exporting the STL file.
- **Returns:**
    
    [`FileWriteResults`](ansys.meshing.prime.FileWriteResults.md#ansys.meshing.prime.FileWriteResults): Results from exporting the STL file.
- **Return type:**
    
    [`FileWriteResults`](ansys.meshing.prime.FileWriteResults.md#ansys.meshing.prime.FileWriteResults)

### Notes

This method does not support Unicode paths.

### Examples

```pycon
&gt;&gt;&gt; import ansys.meshing.prime as prime
&gt;&gt;&gt; model = prime.launch_prime().model
&gt;&gt;&gt; fileio = prime.FileIO(model=model)
&gt;&gt;&gt; out_file_path = r"/tmp/output.stl"
&gt;&gt;&gt; part_ids = [part.id for part in model.parts]
&gt;&gt;&gt; export_stl_params=prime.ExportSTLParams(model=model,part_ids=part_ids)
&gt;&gt;&gt; results = fileio.export_stl(out_file_path,export_stl_params)

```