Open XML Package Editor Power Tool for Visual Studio

This Power Tool is a Visual Studio add-in that provides an easy way to parse and edit Open Packaging Conventions files, including Word, Excel, PowerPoint and Visio documents. This Power Tool enables you to do the following tasks:

Open any Open XML Package file or XPS Package file directly in Visual Studio 2010, 2012 or 2013
Browse the contents of Package files in a tree view
Open any XML part directly in Visual Studio's rich XML editor
Add or remove parts and relationships directly in the user interface
Import and export part contents to and from files
Detect when a Package file that is opened in Visual Studio is modified externally. The Power Tool prompts the user to reload the file without having to close any open XML part editors
Create new Office Packages from a set of templates using Visual Studio's File > New dialog

This Power Tool has been released by Microsoft as an open source software project. Full source code is available on GitHub athttps://github.com/OfficeDev/Open-XML-Package-Editor-Power-Tool-for-Visual-Studio.