I need access to my 2016 tax file so I can complete it and file.

[SweetieJean]

You have to download the data file ending in .tax2016 and install the Desktop program to open it.  How to finish a prior year online return https://ttlc.intuit.com/questions/2559403-how-do-i-finish-a-prior-year-return-that-i-started-in-turb... 

If you paid for 2016 call in and ask for the program download.  Contact Customer Service during office hours M-F 5am-5pm Pacific (8-8 Eastern) https://support.turbotax.intuit.com/contact/