Click on a tab above. It will display a list of directories you can expand, and then files you can click on. Clicking on a file will start a download. If for any reason it won't start a download you can right click and start it manually.
This is a collection of Doc's and links I've gotten over the years. You can navigate the folders below. Click on a folder to see it's contents. To download you can click on a file, if for some reason a download does not start you can right click to download. Click a folder again to collapse it.