If you have multiple PST files and you want to merge them in one PST file, try PST Merge tool to easily complete this task with simple mouse click. It supports both ANSI and UNICODE PST file and merge mulple PST files in one PST file without any data loss.

https://www.g2crowd.com/products/merge-pst-tool/details

Using Exchange EDB Recovery software to quickly fix all issues from corrupted EDB files and export whole mailbox from EDB file to Outlook PST file without any data loss. This software recovers permanently deleted items also. Try this software to export EDB mailbox directly to Live Exchange Mailbox and Office 365.
Software Download from:
http://mail2web.com/plugins/addons/outlook/backups-archiving/exchange-server-edb-mailbox_9187.html

 

Advances Outlook pst recovery software which can easily repair your infected PST files and recover all the stored data including emails, contacts, journals, calendar, tasks, notes, drafts, etc.It offers you to save the recovered PST files and email items in different formats such as PST, MSG and EML file format. It can effectively restores your crucial Mailbox Data such as: emails, calendar, contacts, distribution list, appointments, tasks, journal, notes, RSS feeds, etc. So, take a look: http://www.filesrecoverytool.com/outlook-pst-recovery.html