Nextcloud mind map offline access

Does anybody knows how to open a mind map file (.km) offline?
I use these mind maps a lot when I’m conected to my nextcloud server, but I want to use them offline too. Is there an application (for Windows 10) that I can use for it?

If you want to edit .km file in desktop, you can try Naotu:

Thank you very much, Soko. Your suggestion help me a lot.
What about edit .km in Android, do you suggest something?

Sorry, don’t have an app for that. Did you look at the playstore?

Hi Everybody,

Do you know if there is an update for this desktop app ? the last is about April 2019.