The software has potential to combine all data files, like contacts, calendars, task etc. Thanks for sharing such useful information. Join, Merge and Merge Contacts. PST Merger offers merging facility for multiple PST files i. Can you please help how can I undo it and return my calendar the way it was. Hopefully that will add a little value to the discussion. Now all my events appear as a copy and I can't amend any of the events as it says that I'm not an organiser! It worked ; I just dragged and dropped the entire calendar list after selecting all events with CTRL-A into the Calendar menu item at the bottom of Outlook 2013 and they all went in there, then I deleted the "Calendar" folder under the Inbox in the Mail view.。
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