Great, thanks do much. 

On Sat, 16 Apr 2022 at 11:22, Lars Ingebrigtsen <larsi@gnus.org> wrote:
Raoul Comninos <revcomninos@gmail.com> writes:

> No, the files are definitely odt not epub.

I downloaded an odf file and was able to reproduce the problem, and I've
now pushed a fix to Emacs 29.

--
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   bloggy blog: http://lars.ingebrigtsen.no