You can download older versions of TurboTax CD/Download using one of the links on this page: https://turbotax.community.intuit.ca/community/product-information/help/where-can-i-download-the-cd-download-edition-of-turbotax/00/873703
Unfortunately, if you have lost your tax files, we are unable to assist you with recovering them, as TurboTax CD/Download only saves to your computer. We don’t have any copies.