IVE GOT FREAKING DELUXE!!!!! HOW DO I USE LAST YEARS RETURN TO START THIS YEAR ??????

Click on File in the upper left then Start a new Return.  Confirm in the next couple screens that you do indeed want to start a new return.  Very shortly, you'll come to a screen showing the prior returns on your computer.  There will be a blue button saying Transfer Return next to each of them.  Choose the one you want to transfer to this year's return..

If all you have is a pdf., then, on the same screen, you'll see Browse for your return and you'll have to browse to where your pdf is.  You're not opening it, you're transferring it.