Can I restore from accountant's addition to earlier version?

SOLVED

I just want to confirm whether I can do something involving 2 different versions of Simply.    I have just taken over the books for a new client.  The existing bookkeeping company uses the 2015 accountant's edition.  I am currently using 2013 Pro.  Would I be able to do a restore from a backup file from their accountant's edition or will that only work if the years were the same?