hmmmm....let me see....
Done working in Word:
1) run Toxaris' Macro
2) click on Word doc
3) ctrl-A (select all)
4) ctrl-C (copy...or whatever weird command those fruit lovers use

)
5) click in book view of new sigil doc
6) ctrl-V (Paste)
7) Put final touches on sigil document
8) Save as clean ePub
OR
.... all that other stuff with multiple proofreads and corrections, etc., etc., etc.
I know which one I'd pick!