I am a big fan of tools that let you make ebooks (fun fact: none of Amazon's Kindle creation tools qualify). I in fact have a post on ebook tools, and I am shortly going to be adding to it now that I have heard about the WordToEpub app from the Daisy consortium.
This is a Windows app that you can use to make an Epub 3 ebook. It is not a Word extension, but unfortunately it still requires MSWord in order to function.
I twice tried running the app even though I don't have MSWord, and it crashed, both times. This is a shame because it means I can't use it to convert docs made by Libre Office or another office app.
You can download the app from the Daisy website.
I tested the app, and aside from some initial fussiness (it refused to accept a Word doc that had no headings) it started out okay. I fed it a Word doc, and then in the next menu it gave me the option of setting the metadata.
Then I clicked the okay button, and everything went down hill. The app tried to open MSWord, couldn't find it, and had a nervous breakdown.
I would like to tell you more about how the app works or what the Epub looks like, but there is no Epub because the app didn't work.
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