There’s a new version of TinyMCE. Don’t look for too many new features, but you can look for valid XHTML output.
Three months ago I would have tried the copy from Word cleanup, but as I no longer work on a LMS, I really don’t care. ….and believe me at my last job I had enough of migrating content from one LMS to another that had bad HTML. Word cleanups only went so far and JTidy never got updated.
I have a tip. If you really want to convert that Word doc to HTML: