~/Library/Application Support/app.soulver.mac/Default.sheetbook
~/Library/Containers/app.soulver.appstore.mac/Data/Library/Application Support/app.soulver.appstore.mac
Sheetbook Location
to move the sheetbook into a synced folder, like Dropbox or iCloud Drive).File > Backups
, select a backup and click "Restore from Backup".File > New > File