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 # write\_pmdat

 Last update: 02.04.2026 

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

#### FileIO.write\_pmdat(file\_name, file\_write\_params)

Write a PyPrimeMesh data (PMDAT) file.

**Parameters:**

**file\_name**

Path for writing the data file on disk.

**file\_write\_params**

Parameters for writing the data file.

**Returns:**

**[`FileWriteResults`](ansys.meshing.prime.FileWriteResults.md#ansys.meshing.prime.FileWriteResults)**

Results from writing the data file.

**Return type:**

[`FileWriteResults`](ansys.meshing.prime.FileWriteResults.md#ansys.meshing.prime.FileWriteResults)

### Examples

```pycon
>>> results = file_io.write_pmdat("/tmp/prime_mesh_data.pmdat",
                                  prime.FileWriteParams(model=model))

```