I tried to add <add key = "web.available-file-size" value = "524288000" /> into “/var/www/onlyoffice/WebStudio/web.appsettings.config” in the onlyoffice-community-server container, then did a “systemctl restart monoserve” and even a reboot of the machine after that. After i tried this i now get this error: The file size exceeds the limitation set for your server. Please contact your Document Server administrator for details.
I have mine in docker but even with a solution mentioned years ago it still does not allow viewing as you can see the error above