This is where you purchase a download of all the files from the CD.  You should first read the description of it here, to be sure that it is what you want. There is a link to return you back to this page at the end of that description.

If you add this item to your cart and buy it, you will be able to download a zipped folder. The actual files from the CD are quite big, totalling 65 MB, so inevitably it will then take a short while to download - around a minute perhaps.

That folder must be unzipped before using it. If you have Windows on a PC, right-click on the folder to get a menu and choose 'extract all...' or 'unzip...'.