When trying to install visual studio tools the following error occurs “This installation package could not be opened. Verify that the package exists and that you can access it” This is mostly caused by VS tools folder missing inside the msi folder of your installation setup. If these folders are there then you might have a different issue. To resolve this for R3 builds follow the following blog by Microsoft support:
After this simply run your installer again and add the visual studio component, worked like a charm for me!
Time taken: 40mins