I think you may be asking how to download a copy of your return to your computer. If so, here's how.
Click on the "Review" tab within TurboTax. Scroll to the bottom and you will see: John Doe - Review T1 General. Click on the "Review T1 General" link and your return should download to your computer. TurboTax does not make it clear how to do this and it took me a while to discover this. There should be a simple "Download" tab. Hope this helps.