Two quick pointers,
Yesterday, I discussed how you can write some sample RibbonX code and insert it into a document or template. Today, I am going to talk about a tool that takes care of the insertion step for you. The tool is called the “Office 2007 Custom UI Editor” and is a free tool from Microsoft. You can download it from openxmldeveloper.org. The tool requires the .NET 2.0 Framework.
Patrick’s blog is a WEALTH of information in regards to code, tools, etc… as they relate to Office 2007 and Office Open XML.
There is also OpenXMLDeveloper.org which is flat out fantastic, and getting better by the day.
If you have a moment, and this interests you… I would DEFINITELY take the time to check out both of the above resources.