So as you may know. The new Word and Excel formats are similar to open office document formats in that they are just zips of multiple xml documents (well mostly xml documents). So what we wanted to do for our project (the WebDav one mentioned in my last post) is to set up a simple templating system that would do variable replacement in Word/Excel documents. And it turned out to be a piece of cake. I am just going to go through the DocX version of template model, but the only difference between them is the folder structure so there is not too much to change to get this working for both.