Hopefully I didn't miss this in the examples, but I have a need to replace the item1.xml in a docx.
I want to create a template (.docx file), map the xml file to the content controls, creating repeats/conditionals/etc and save the template. The application I'm writing would then simply take that template and process it with my data (custom XML) and save to a docx as output. However, I am testing (using the CreateDocxWithCustomXml example) ...