Here are the directions for just downloading your file - when you download the file initially, there ought to be a pop up "system box" showing where it is being saved ( see image below). You can easily save it to the "Desktop" from there just by clicking on Desktop on the left column and choose save at the bottom. Once it is on your desktop, then you should right click on the file and another pop up will be shown (see blue circle below) - then choose Extract all.
Also, there is a file folder called "Downloads" right under Desktop that you can open and you may be able to unzip the files you have already downloaded from there. Once your file is unzipped, you ought to be able to drag it where ever you need it to be,
Hope some of this works for you.