I would like to open my 2017 turbotax .tax file and step through it like I did when I initially filed it, where it guides me and everything. Possible?

I got a letter from the IRS saying I did something wrong and I would like to step through exactly like I did in the software last year and make sure I entered everything correctly.   Is this possible?   I tried opening the .tax file in Turbotax but it simply acts like I am trying to file a new return.