I need to be able to take the original content of document.  Then add the content from the document.xml from another document to the original document.  I have been reading about OpenXML which I am required to use.   I have found several right up but most require you to have a new template.  But I can not do this.  Is there a way to just copy the  contents document.xml file from source file and append those contents to the a new paragragh in the other file. (Contents include any xml markup).