Convert Exchange 2007 Mailbox To PST - Version 1.0.0.1 Convert Outlook Exchange 2007 Mailbox to PST file (Personal Storage folder) for regular use on Outlook. This conversion software is designed to convert damaged Exchange 2007 Mailbox file into Outlook PST file. Covert Exchange 2007 Mailbox to PST tool takes the OST file and convert into a new PST file in Outlook 2003 – 2010 format for easy import on various versions of Microsoft Office Outlook.