The tax software must have every state installed in it that is in the real tax file you are attempting to open.
Those states need to be installed BEFORE you attempt to open your actual 2017 tax file.
IF it is only one state in that file..then only one state needs to be installed, but if that original .tax2017 datafile file has multiple states in it..then they all must be installed first.
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Here's what you have to do.
1) Start a NEW tax return. Enter enough information about your personal information, and the state you live in...and if any other states are involved....then go to the state section and download/install your own state (if your state has an income tax) and then buy, download, and install any additional states needed.
2) Do a SAVE-AS for ta file and make sure you give it a "Dummy" filename so you don't risk overwriting you original tax file,
3) Then go to the top menu to the "Online" selection and check for all software updates, and let it install anything it finds.
4) then use the "File" menu item (upper left corner "Open Tax Return") to browse to and open the file you really want to see.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
