When you click on link, you will probably see picture like this:
That is OK, because if you are not premium user, for which you must pay, you must download file like regular user what means you must complete one survey. You just must click on any survey what you see on screen (like on picture) and complete it. When you finish you maybe have to give your phone number because you will receive a PIN whit which you will unlock download. Dont worry, everything is safe and free. After that file will be downloaded and you can used it for what you want.