Merge Multiple Outlook Calendars - Version 2.5 Merge multiple calendars in Outlook 2003, 2007 and 2010 etc. When you need to merge calendars in Outlook then use our software. These PST merge tools not only merge multiple calendars in Outlook 2007, 2010 but, also merge other data file items. This is the best solution for you because with this software you can merge multiple Outlook calendars without effort. Just get this software and merge Outlook files.The software allows you to merge unlimited Outlook calendars folders in PST files into single calendar and merge other data like- merge contacts, Outbox email folders, inbox email folders, to do list and task bar etc. With option to merge Outlook data files you can also remove duplicates and other items.PST Merge software is available for free trial with demonstration. This demo merge your three folders in each file. If you need to merge all folders and files then try full version of this software. We provide two type of full version software one of personal version