I have a space that I exported and saved from an unknown previous server version as a backup. I now wish to import this space to our current Confluence Cloud instance. Using import, I get an error. Documentation says to use the "Confluence Cloud Migration Assistant" app, but that app does not seem to exist any longer.
How can I import this documentation space? I no longer have access to a server version to attempt to restore and then upgrade that server version. The content is what matters, not users or other aspects.