There are 3D point clouds and 3D models. Download respective viewer (see below). To choose a project click on thumbnails bar. To open 3D content click on a big gallery picture. Be patient: it takes time for 3D to download in a new window.
To View Point Cloud in 3D:
To view a sample point cloud generated with My3DScanner in true 3D you need to download and install free 3D viewer.