Hello, since today i can’t open ods with the new ios app Nextcloud
I use collabora with yourownnet.fr
i must use xlsx now !
Help me please 
is an update of the application planned to correct the problem? thank you
Same here, in my opinion the issue is related to the last iOS Nextcloud client update, in my case on an iPad and a self-hosted server. All is working as expected on Android and web interface.
I opened following GH issue:
Open Document Format files can’ t be opened/edited anymore on iOS/iPadOS