Accessing iWeb files for Everweb migration on a Mac

I am trying to figure out how to gain access to my iWeb files to export to Everweb. It's been very many years since I did anything on iWeb. I cannot remember the steps. The instructions are to publish my oiWeb website to a local folder on my computer to have the source files to use to move to Weverweb environment.

Can anyone advise on how I might be able to do that. Or, is it not possible because iWeb no longer exists.

Thanks,

Mark

[Re-Titled by Moderator]

Original Title: iWeb to Everweb