Important: The add-in commands feature for Word, Excel and PowerPoint will be in preview soon but it has not being released yet. We are making this repository public as we work on the samples prior to the release of the feature; you can take an early look at some of the changes we are doing to the add-in manifest that will help you model commands. We'll let you know when the preview of feature is live and we will publish additional detailed documentation of how to use it.
Check out this video for an overview of the feature.
##Samples description These are Excel and Word add-in samples that use Add-in Commands to extend the Office User Interface
For general information about using Commands, see [Add link to upcoming docs]
During the developer preview you can sideload your manifest in Office Online clients or Win32 clients. This document explains the steps in detail [Add link to upcoming docs].
Once the add-ins are installed they will appear in the Office User interface as shown below.