Office 2016 which comes with Office 365 is great, and has some excellent new features. However there is a catch for people that may also have a copy of Project or Visio that is not part of Office 365 (ie and "old school" licence was purchased).  The trap is you can't run both Office 206 which is part of Office 365 and an older version of Project or Visio together.  The only way to get them to work together is to purchase a subscription copy of Project or [...]