Opening old QuickBooks files in newer versions of QuickBooks Desktop

When opening, or restoring a backup of a QuickBooks Desktop 2006, 2007, 2008 or 2009 (Enterprise 7,8 or 9) file in QuickBooks Desktop 2014, 2015, 2016 or 2017 (Enterprise 14, 15, 16 or 17), you see the following error:

We’re sorry. QuickBooks couldn’t open your company file……

http://support.quickbooks.intuit.com/support/articles/SLN97547