1.3 Overview

The structures specified in this format provide the description of the XML representation of Office Add-ins inside the document file formats of their host client applications. The elements and attributes specified in this format enable developers and end users to include Office Add-ins on either spreadsheet or word processing documents. The XML structures are used by the Office Add-in framework to activate Office Add-ins when a document is opened by an end user.

The following sections provide a base definition of how an Office Add-in is stored and additional syntax extensions to store two different types of Office Add-ins.