The RealSense SDK comes with a sample program called 3DScan which can create a 3D model and export it in .OBJ format.
You can also use the RealSense camera with commercial 3D scanning / model editing software such as Cappasity's Easy 3D Scan. Easy 3D Scan can send models to the internet 'cloud' to embed on a website.
I am not aware of a model viewed in the SDK. You can find a free Microsoft viewer for Windows 10 called View 3D, though it requires the Creators Update version of Windows 10.
A few other model viewers are available on the Windows app store for a small fee.
Another way to view a model for free would be to import it into the Unity game creation engine via drag and drop.
Edit: I found that I could open View 3D in Windows 10 Creators Update by typing 'view 3d' into the text box at the bottom of the Windows screen (next to the button that you use to shut the PC down) and then clicking the View 3D icon that appears. So it may be a pre-installed app that comes with the Creators Update. It can open obj, fbx, 3mf and stl model files.