@jaykay28 Are you attempting to open a 2018 .tax2018 data file with the 2019 software. A 2018 .tax file can only be opened with the 2018 software (you can *transfer* some 2018 information into the 2019 software from the "Begin" screen when you start a new 2019 tax return with the 2019 software.
If you are using the 2018 software and get that error the it is usually caused because the .tax2018 data file contains state information and you do not have the state software installed. Also double clicking on the .tax file will try to use the latest TurboTax version installed, even it it cannot open the tax file, in that case open TurboTax first then use File -> Open and choose the proper year .tax file to open.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
