Outlook Calendar
Excelendar
Outlook calendar control from Excel and the web. Import and export calendar data, perform bulk edits, clean up duplicates, and work with calendars at scale.
CalendarTools
Import, export, bulk edit, and enrich your calendar data.
Google Calendar
GCalTools
Advanced tools and workflows for Google Calendar, including spreadsheet-driven control, UI extensions, and desktop tools for Events & Tasks.
YouTube: CalendarTools
Video tutorials and real-world workflows covering calendar data management across platforms.