Just click the 'Download' link at the bottom of the page, and then simply open the document by clicking the 'OPEN' button that comes up at the bottom of your screen. You don't have to save the document, and when you are finished just close the page without saving (by clicking on the 'X' in the red box).
There...it's as simple as that!
And of course it's Free! So, why not take a look!!!