I recommend using the eSoftTools Outlook PST Recovery Software if you need to open PST file in Outlook 2010. It is capable of recovering PST files with ease. It operates in an uncomplicated and precise manner. This programme can repair and recover corrupt Outlook PST files in a variety of formats. All users have access to the trial version. You can only retrieve 25 emails per folder in the trial edition. Technical support is also available 24 hours a day, seven days a week.