How can I open a prior year's TurbpTax file if I no longer have that year's Turbotax software on my PC?

[DGusman]

I have saved the tax file, but hot the software for the last 20 years of my taxes, and need to review some of the files from 2010 - 2016.

[xmasbaby0]

You need the software to open a tax file unless you also saved the returns as pdf's.   If you only have them saved as tax files, you cannot open them without the software.   There is a an online service you can google called Taxprinter----not part of TurboTax---that can print from tax files.