[buralex]

I've got myShelves being loaded from Calibre to KOBO working great. Thanks for the very clear instructions but need to go the other way.
i.e. if I've assigned shelves on my KOBO can I update Calibre with shelf changes made on it?

All books initially assigned (from Calibre) to "notRead-Shelf"
As I read them on KOBO I change shelf from "notRead-Shelf" to "Read-shelf"
This makes it easier to find books not yet read.

Problem: The "Manage" button on lower right stopped working and KOBO support told me to try a Factory Reset (which clears all ebooks) making it necessary to reload from my Calibre library but want to set shelf in Calibre to match current shelves on KOBO before reloading.

If that can't be done automagically can anyone tell me if currently assigned shelf/shelves on KOBO is hidden anywhere in the folders/files visible in Windows Explorer?

I was hoping it might be in one of the subfolders by author in Digital Editions (Annotations and Manifest - containing XML files) but no joy. The other possibility seems to be one of the sub-folders of .kobo though that all seem to be binary data. I did recognize in some of them some ascii text that appears to be names of shelves but no (obvious) way to figure out which titles have which shelves.