Hi I have recently switched from an iPhone to an s8+. I have used the smart switch software to imports my contacts etc..in calendar under phone calendar I now how about 20-25 calendars listed from the import. The smart switch software seemed to change things such as reminders and notes into calendars. There does not appear to be actual events under any of these calendars but I seem unable to delete them ? I am using the Samsung calendar and the only option seems to be a switch to turn the calender on it off. There is no actual account for them so I can't remove them that way either. Any help would be greatly appreciated.