Microsoft is transitioning from offering a 32-bit version of Mac Office to offering only a 64-bit version. On August 22, Microsoft released an update that upgrades Office 2016 for Mac from 32-bit to 64-bit. (You can read more about the move to a 64-bit version in the Office developer blog.)

What does this change mean for me?

  • If you use Office 2016 for Mac and don’t use any add-ins, you should be unaffected by this change.
  • If you use add-ins in Office 2016 for Mac, you may experience compatibility issues and need to update add-ins to 64-bit.
  • If your system has already been updated to 64-bit and you need to revert back to 32-bit, there is a 32-bit installer that will help you to do that. If you need assistance with this, please contact 6-TECH (see contact information below).

However, if you do revert to 32-bit, please be aware that you may continue to get update reminders each month to upgrade to 64-bit.

Additional technical information can be found at these links:

If you experience a problem with Office 2016 for Mac after the update to 64-bit, or if you have questions, please contact 6-TECH at (336) 256-TECH (8324) or