Must-have favorite for Microsoft Office users: Word HTML cleaner
PDF version
URL: http://textism.com/wordcleaner/
A tool to strip Microsoft’s proprietary tags and other superfluous noise from Word-generated HTML documents, leaving all the basic goodness intact. File sizes are greatly reduced, and the returned markup is easier to read, revise and employ.
Note: free version limited to 20kb
A few other very similar on-line tools do exist which you could/should try as well: