Calendars is core application on iPhone or iPad which keeps track of what you're doing and when. That may explain why calendar came stock with iOS when it is firstly published in 2007. We use calendar to remind us of important events as well as arrange our daily life and work.
Therefore, Calendar is an indispensable app on iPhone and it is necessary to safeguard your calendar data. Usually, we would like to sync our iPhone or iPad to iTunes and iCloud for backup in case the calendar is lost. When you find your calendar is lost, you need to restore your iPhone or iPad with the entire backup file including everything you have backed up to iTunes, which costs too much.
With iFonebox, you can make it easier. As iFonebox is specialized iOS data recovery software, it can extract various iPhone/iPad data including Contacts, Notes, Calendar, Reminders, Voice Memos, and Photos etc from iPhone and iPad as well as from iTunes/iCloud backup file. Besides, iFonebox makes it possible to selectively recover and export certain data to computer.
To learn more details about how to transfer calendar to Windows PC, please refer to our guide at http://www.ifonebox.com/how-to-selectively-transfer-calendar-from-iphone-ipad-to-windows-pc.html