# Astun Technology GML/KML Loader

You can use the Astun Technology Loader to convert GML 3.2.1 data to other geospatial and non- geospatial formats. This is a free, open-source loader for geographic data in GML and KML formats. It is written in Python and uses OGR 1.9. source data to output to any format supported by OGR, for example, shapefile and MapInfo TAB.

{% hint style="info" %}
*This loader was originally written to load OS MasterMap Topography Layer data in GML / GZ format, but you can use it to load other GML data. The loader was last updated in December 2021.*
{% endhint %}

Installation files and guides for the loader, including configuration examples, are available from the [*AstunTechnology/Loader repository on GitHub*](https://github.com/AstunTechnology/Loader).


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-mastermap-sites-layer/os-mastermap-sites-layer-getting-started-guide/astun-technology-gml-kml-loader.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.