Open PST in Outlook 2007

Here is a perfect solution to open PST in Outlook 2007 PST file format. SysTools gives you a standalone solution named as PST Upgrade tool that allow you to convert Outlook PST files into Outlook 2007 and 2010 PST file formats. You can upgrade Outlook mailbox size limit from 2GB to 20GB and upgrade PST files from ANSI to Unicode PST format.