Curious about Log message - Exported Metadata

[artc]

I have been looking at the MinimServer log, trying to understand a metadata issue I was having and I see a goodly number of log entries during the scan: 'scanning directory Exported Metadata'. (They are not related to my issue. I am just curious about them.)

Can anyone explain the significance of the message, and perhaps what files or folders it pertains to? And how it got exported? (I manually edit metadata quite a bit.)

Thanks.