Last Updated: December 19, 2017
Microsoft AutoUpdate may offer Office 2016 for Mac updates even though you have Office for Mac 2008 installed on your Mac. Upon accepting the update, Office for Mac 2008 gets automatically upgraded to Office 2016.
This can occur if you are using version 3.14.0 of Microsoft AutoUpdate.
This issue has been fixed in Microsoft AutoUpdate version 3.14.1.
If one or more of your applications were inadvertently upgraded to Office 2016 for Mac, use the following steps to revert to Office for Mac 2008.
Open Finder and navigate to the /Applications/Microsoft Office 2008 folder.
Press the Control key on your keyboard, click the following application names, and choose Move to Trash:
Locate your Office for Mac 2008 installation media, and re-install the product. Your existing data, settings and license will be retained upon installation. If you have lost or misplaced your original media, you can download the product from Microsoft's web-site.
Install the latest Office 2008 update (12.3.6), from Microsoft's web-site.
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