You can file this year's tax return online with TurboTax, but for prior years, you would need to purchase the software
HERE is where you can purchase CD/Download versions of past years' programs.
Note that the programs available only go back as far as 2013. For tax returns older than that, you could download the forms from the IRS. See this link: https://turbotax.intuit.com/tax-tools/tax-tips/IRS-Tax-Return/How-Do-I-File-Back-Tax-Returns-/INF145...
Note that only the 2016 tax return can be e-filed. The rest must be printed and mailed.
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