Calendar ImportExport for Outlook for Windows

The description of Calendar ImportExport for Outlook - Play With New Friends

Use Calendar ImportExport to import multiple iCal/vCal files (.ics, .vcs) to Outlook calendar (appointments), or export Outlook calendar (appointments) to iCal/vCal files at once.Split, combine iCal/vCal files even without Outlook installed.Sync, export or move Outlook calendars in an easy way.Use it to manage duplicates while importing, or apply date range filter while exporting.Use command line interface to automate import, export task.