Originally Posted by Loceka
Still, I wonder how you managed to find out that the .html files in the archive were actually gzip files because gzip (on Linux) as well as 7zip (on Windows) are unable to open the ".html" files from the official Kobo dictionaries.
Have you found a way to open the official files ? Or are you aware of any way to do it ?
It is a little late, but I did not see the question earlier. Not all kobo dictionaries consist of gzipped html files. Some of them have a different (to me unknown) format.