Thank you for sharing.
I am working on DocSearch. DocSearch does not parse Microsoft Office Documents. It is only build for publicly available website.
However you can use our open source crawler on your own. You will need to serve your content to an internal website and then crawl it with your own algolia credentials.
As for your initial request regarding adding search capabilities to Microsoft Office, you’ll have to first extract the textual content of your documents and index that information thanks to algolia. You can find some more details here.
Have a great day,