Some people will be able to click the links on left and see or hear content in their browser. But not all people will be be so set up. Nevertheless, everyone should be able to access the documents and open or print them using other facilities, likely already on your computer.
If your browser fails to activate the appropriate program or download the file on double click, right click and choose an option like "save". On a Macintosh with a one button mouse, hold down control key while holding the mouse button down, choose appropriate option from a context menu that will appear and just let go the button.