I would like to create some pages on my website where someone can download some image files I have made by clicking a link and that box comes up that asks if you want to save or open the file. When I do what other people have said to: <a href="http://www.mysite.com/file-name.file-extension" target="_blank">Download PNG</a> and click on the link it brings up a page showing the image instead of a box that lets them download it. What am I doing wrong?