Applies to:Office for Mac, Office 2019 for Mac
Follow these steps to completely uninstall Office for Mac 2011 from your computer. Office 2011 never had a 64-bit version and went out of support in 2017. The Mac's operating system has supported only 64-bit Intel processors since 2011's OS X Lion, although both 32-bit and 64-bit applications may be run on all editions from Lion forward, including. Backup Exec System Recovery 2010 Small Business Server Edition With Essential Support 2.
Apple has long encouraged application developers to adopt the 64-bit runtime environment, and we've been hearing from customers that 64-bit versions of Office for Mac are desirable to enable larger address spaces, better performance, and new innovative features. All releases of Office for Mac after August 22, 2016 are 64-bit only.
What does this change mean for me?
If you use Office for Mac but don't use any add-ins, you should be unaffected by this change.
If you use or develop add-ins in Office for Mac, you may need to update those add-ins to 64-bit.
Tai Office 2010 64 Bit
Security Update for Microsoft Office 2013 (KB2880463) 64-Bit Edition A security vulnerability exists in Microsoft Office 2013 64-Bit Edition that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability. Microsoft Office 2016 for Mac is on the verge of moving to 64-bit. The good news is that the transition from 32-bit to 64-bit should be seamless for most users. There are, of course, still a few.
I develop add-ins or write VBA for Office for Mac. What do I need to know?
The primary impact of this change is to compiled add-ins. Office add-ins (add-ins using the JavaScript-based APIs) are not impacted by this change.
The work required to update your add-ins for 64-bit will vary based on the code.
For example, any use of VBA's DECLARE statement to load external functions in compiled dynamic libraries will require that those libraries support 64-bit. The VBA code itself will continue to work as VBA is transitioned to 64-bit, but you'll need to update the external libraries.
Office 2011 Mac 64-bit
If you need guidance on making this transition or have additional questions, please let us know by emailing Office64@microsoft.com and we'll be glad to help.
