You can now get Office Add-ins from the Store or use Add-ins you already have from right within recent versions of Word for Mac and Excel for Mac.
Microsoft Office 2011 for Mac – Free Download – As usual, microsoft is giving away office 2011 for mac as a free download, for those buying an earlier version of the product within a stipulated time frame. All mac users who intend buying microsoft office 2011 for mac, can now purchase a qualifying Office 2008 and become eligible for a free upgrade to Mac 2011. Important note for Office 365 subscriptions: After September 22, 2016, Office 2011 for Mac is no longer available for installation with an Office 365 subscription.This doesn't affect one-time purchases of Office for Mac 2011 such as, Office Home and Student, Office Home and Business, or Office Professional.
Where To Download Microsoft Office For Mac 2011 To 2016
There are two kinds of add-ins: Office Add-ins from the Office Store (which use web technologies like HTML, CSS and JavaScript) and add-ins made by using Visual Basic for Applications (VBA).
If you're looking for a built-in add-in such as Solver or Analysis ToolPak, select the Tools menu and then select Add-ins.
Get an Office Store add-in for Word or Excel for Mac
On the Insert menu, select Add-ins.
To get new add-ins, select Store. To use add-ins you already have, select My Add-ins.
The add-ins you'll see will depend on the app you're using and the kind of Office 365 subscription you have.
Office for Mac doesn't currently support organization-based add-ins.
Install Office For Mac 2011
Get a VBA add-in for Word or Excel for Mac
On the Tools menu, select Add-Ins.
In the Add-Ins available box, select the add-in you want, and then click OK.
Where To Download Microsoft Office For Mac 2011 Reinstall
Requirements
Microsoft Office For Mac Download
Office Add-ins aren't available in Office for Mac 2011. They're only available in newer versions.