WPS & onlyoffice

I would like to edit WPS format file online with onlyoffice document server, What do I need to do.
I have done something, but it does not work well.
(upload://yBkrOHgJnQOz6O0i54msjluQZ5U.png) ng)

Very informative, thank you

One could suggest to Wps and OO devs, to consider, working together and adding support for it.