How to add html to calibre and send to cybook opus
I am having some problems using calibre to send html ebooks to my cybook opus device.
When I add html ebooks to calibre it adds it as a zip file; from what I've read, this is standard behavior in calibre. However, I can't send this zip file to my opus. The opus supports html files, so if someone can share any instructions on how to get calibre to add my html books as html so I can send it directly to my opus would be really awesome.
Thanks so much for any help you can give. - mytwobears.