https://forum.marginnote.com/t/export-related-issues/1717/3?u=lanco_support-team
Please check the backup related paragraph. MN has its own format which keeps information best and very suitable for MN Docs share.
The wiki may not enough clear about backup potential usage. Marginpkg files are the best way to share with other users and this is what I want to point out.
Regards,
Lanco
Support Team