> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/products/land-and-terrain-portfolio/os-open-greenspace/os-open-greenspace-overview/product-supply.md).
# Product supply
## Available formats for the product
OS Open Greenspace is available in the following formats:
* Geography Markup Language (GML) 3.2.1
* Esri shapefile
* GeoPackage
* Vector tiles (MBTiles)
## Coverage and file sizes
Coverage is all of Great Britain (GB).
For the GML and Esri shapefile formats, you can optionally set a custom area corresponding to one or more 100 km² tiles of the OS grid reference.
{% hint style="info" %}
If you select adjacent 100 km² tiles that include features that cross the tile edge, the whole feature is included in both tiles. You may therefore need to deduplicate your data, depending on its application.
{% endhint %}
### **GML**
* A zipped file comprising a national set.
* The size of the zipped file is approximately 34.15 MB.
* The zipped file contains one GML file.
* The data is not encrypted.
### **Esri shapefile**
* A zipped file comprising a national set.
* The size of the zipped file is approximately 33.87 MB.
* The zipped file contains up to eight shapefiles.
* The data is not encrypted.
### **GeoPackage**
* A zipped file comprising a single national GeoPackage file.
* The size of the zipped file is approximately 57.65 MB.
* The data is not encrypted.
### **Vector tiles**
* A zipped file comprising a single national MBTiles file.
* The size of the zipped file is approximately 76.4 MB.
* The MBTiles file contains a full set of national vector tiles.
* The data is not encrypted.
## Product update schedule
OS Open Greenspace is updated bi-annually in April and October.
## Product supply mechanism
OS Open Greenspace is supplied as an online download and is available without registration from the [OS Data Hub Open Greenspace download page](https://osdatahub.os.uk/data/downloads/open/OpenGreenspace).
The data is available as a Full Supply only, that is, Change-Only Updates (COUs) are not available.
---
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