Where are my saved WiFi passwords?

Man, I am getting old. I just got this phone a couple of days ago and already reset it twice looking for my saved passwords. I am not rooted and am not planning to, so I do not have access to root folders. I have ES file explorer pro but cannot access the fix I found when searching google. Any one know how a simple way to restore saved wifi passwords on the Nexus 6p?

Thanks in advance.

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