1. Start QGIS
2. Open the project from the GeoPackage that is provided with this tutorial: from the main menu choose Project | Open From | GeoPackage...
3. In the Load project from GeoPackage dialogue browse to data_hypsometric_curve.gpkg as Connection and choose Hypsometric_Curve as Project and click OK.
Now you have a styled dataset consisting of a DEM raster layer and a catchment boundary polygon.
In the next section we'll use that data to create a table with the cumulative elevation distribution in the catchment.