To export InDesign document (INDD) in Word, you can convert InDesign file to PDF and then to Word, or export InDesign file as Rich text Format.

A print book should have "Facing Pages" checked, and an e-book should not. Check the "Master Text Frame" option if you plan to use page numbers, footers or headers on each page.

End-to-end, I was able to go from InDesign document to Kindle document live and running on my Kindle in six minutes.