# GeoPackage overview

OS MasterMap Greenspace Layer is supplied as a single GeoPackage for the whole of Great Britain. GeoPackage (\*.gpkg) is an open, non-proprietary, platform-independent, standards-based data format for geographic information systems (GIS), as defined by the Open Geospatial Consortium (OGC). It is designed to be a lightweight format that can contain large amounts of varied and complex data in a single, easy to distribute and ready to use file. GeoPackage is natively supported by numerous software applications.

GeoPackage offers users the following benefits:

* The single file is easy to transfer and offers the end-user a rich experience.
* Attribute names are not limited in length, making the format user-friendly.
* The file size limit is very large at 140 TB (a file size limit might be imposed by the file system to which the file is written).
* It supports raster, vector and database formats, making it a highly versatile solution.

For information on how to open, use and understand a GeoPackage dataset, please refer to our [Getting Started with GeoPackage guide](https://docs.os.uk/os-downloads/resources/product-resources/getting-started-with-geopackage-and-vector-tiles-guides/getting-started-with-geopackage). For further information on GeoPackage, please see the [GeoPackage website](https://www.geopackage.org/).