[Dan23]

When I add htm files to the new version of calibre, they show up as zip files in calibre.
In the file system they turn up as zip files with the following structure:
metadata.opf
<content>
and then in <content>:
the htm file.htm
<resources>
I would like to know if htm files appearing as zip files are intentional, and if so why?
Htm files that are already in calibre show up as htm files