by following the instructions outlined in the link you posted, I am taken to the 2016 return and not the 2015, which is the one I need to cancel.  When I go to the Tax Timeline and open the 2015 return, I am directed to download a .tax file.  I'm not sure I'm looking in the right place for the info you gave. ??

you must have saved the amended return in 2015 and did not undo it.  Best thing is to start over and fix 2015  before starting 2016.  I have a question to other users in for you , if there is some easier way.

thank you.  Because I'm not sure I'll have time to start over, and since the worksheets are not part of what is sent to the IRS (my biggest concern), can I do the "start over" after I file my 2016 return, and then get back to 2015 and cancel out the amended return?

The issue is if any of the 2015 amounts carried into the 2016 return...   If you used desktop, you could override the carryforward worksheet easily with correct amounts from 2015.  The 2015 will impact you if you itemize, if you have a refund, if you paid estimates,.  Desktop TT has so much more functionality then online, desktop version, easy to go to the carrforward form and override the data.  The 2015 amended goes nowhere unless you submitted it.

thank you.  I appreciate your help.  I'll probably just mail the return to insure that the tax history isn't sent as part of the return.  I've doublechecked the 2016 numbers and there are no numbers carried forward on 2016 return. Only that tax history worksheet. I think when I was informed that I wouldn't need the amendment, I went in to the original return and made adjustments because I couldn't figure out at the time, how to delete the amended forms. So that's probably why the only thing that hasn't changed is the tax history.  Not sure but it makes sense to my confused mind.  LOL  thanks again!

tax history is not sent.... only required forms if you electronically file.  If your return is relatively simple, the only carryfwds normally or NOL carryforwards, estimated taxes, state and local tax deductions and most of them can be fixed during the interview. good luck.