Compatibility: OS X 10.8 or later 64-bit

Export Calendars Pro will let you easily export events and reminders from your Mac's Calendar and Reminders apps to an Excel file, CSV file, tab-delimited text file or straight to the clipboard. All calendar sources that Apple’s Calendar app does support are supported by the app too, including Google and Exchange calendars. But it's not just any export tool: It lets you export special fields like an event's duration, which is great for determining your billable hours. It also lets you export any contact property for any participant for an event from your Address Book.

Homepage: https://www.subclassed.com/apps