I just received a 2015 file from a business associate. I tried to open it with 2014. Guess what..."this is an unrecognized file..." blah blah. Now I understand piracy concerns, and all that, BUT...making the software so different as to not let it see a file created on a version that's ONE YEAR REMOVED is a little paranoid, short sighted and stupid.
Rant over
Bob Hunter
Atlanta, Ga.