You can't open a 2013 data file without 2013 software, and you can't create a PDF without the 2013 software.
How did you acquire the 2013 software? If you bought a download from TurboTax, the program installation file should still be in your online account at the link below. If it's not there, you may have multiple accounts, and we can tell you how to troubleshoot that situation.
Or if you bought a 2013 CD and lost it, you can phone TurboTax Customer Support. To get a phone number, fill out the small form at the link below. Enter a short question or a few keywords. You will be assigned a phone number based on your issue. The phone number will not display when they are closed.
FAQ: What is the TurboTax phone number?
Or you can get a free 2013 return transcript from the IRS, either online or by postal mail: