Unzip the download. Each variant contains one equirectangular EXR panorama (unclipped, linear). Blender: World tab in the Shader Editor, add an Environment Texture node, load the EXR and connect it to the Background input. Set Strength to 1.0; the unclipped sun gives correct light and shadows without an extra lamp. For other renderers load the EXR as a dome or environment light with spherical mapping. Higher resolutions, the zDepth channel and the series bundle are on https://www.hdri-hub.com/shop/backplates/hdri-domes