When a user opens a .docx file, it all works (very proud of myself). However according to https://helpcenter.onlyoffice.com/ONLYOFFICE-Editors/ONLYOFFICE-Document-Editor/HelpfulHints/SupportedFormats.aspx
Onlyoffice also supports epub files… How do I enable that? Currently when I click an epub files they simply download.
Likewise odt files do not open, they download. Is this something in the nextcloud server configuration that decides what extensions are handled by onlyoffice?