URL: http://textism.com/wordcleaner/ [5]
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:
Links:
[1] http://linux.philosweb.com/drupal/category/it/office
[2] http://linux.philosweb.com/drupal/category/it/software
[3] http://linux.philosweb.com/drupal/category/it/tweaks
[4] http://linux.philosweb.com/drupal/category/it/web
[5] http://textism.com/wordcleaner/
[6] http://word2cleanhtml.com/
[7] http://www.wordcleaner.co.uk/
[8] http://www.convertwordtohtml.com/
[9] http://www.clicktoconvert.com