The easiest way to create modern business applications for the Cloud and Office 365
Matt Sampson's blog has a post today about exporting saved data to a Word Mailing Labels document, and how to display a "Save As File" Dialog to allow the user to select where the file should be stored.
Code samples are also posted on the code gallery here.
Blog post is here.
this blog template looks awful in chrome. lot of white space at top, need to scroll down for posts!