If you have numerous PST (Outlook Personal Folders) files on your computer, it gets difficult to manage all of them. By using PST Merger software , you can merge all PST files into a single file just in a few clicks.
You can also try out PST Merge Software. I have used the free version and let me tell you the software is a ground-breaking tool integrated with the intelligent scanning algorithms that allow you to merge an unlimited number of PST files into a single PST file in no moment of time. This utility merges various MS outlook contacts, outlook emails, and outlook calendars into one PST file with great ease. To know more about the usability and its feature of this incredible tool.
visit here :-
http://www.osttopstapp.com/pst-merge.html