Merge Multiple PST Files - Version 2.5 If you are facing issue to merge UNLIMITED PST files then try one of the troubleshooting tools name is SysTools PST Merge Software. The latest version Merge Multiple PST Files Software 2.5 gives you the fast result for merging process. Outlook professional easily and efficiently merge all Outlook items such as:MS Outlook Journal,MS Outlook Calendar,MS Outlook Contacts,MS Outlook Emails,MS Outlook Attachments,MS Outlook To-do list,MS Outlook Inbox etc into single PST Outlook.Merge PST Outlook files tools gives some advanced features to merge: Creates New PST File- PST Merge creates a new PST that is a replica, folder by folder, of an existing one. It makes no changes to the original PST file. Software does not put anything the existing PST file and *Preserves all email metadata or Meta information - Merge personal folders maintain all emails Meta data information intact like