Outlook repair software is a utility that you can use in this case talk you how to repair outlook. It is highly recommended that you backup the damaged PST first as running the tool can irreparably damage the file.
But there are outlook repair tools that could aid you like Recovery Toolbox, Stellar Phoenix, DataNumen and etc. – they are most effective. Moreover there is new generation of instruments like Outlook [http://www.microsoftoutlook.repair/|Online Services].
• Quit the application
• Scanpst.exe is a hidden file so make sure that the 'Show hidden files and folders' setting is enabled in the folder options
• Click Start | Search, or Find and type 'Scanpst.exe' in the Search box
• Double-click to open the file and browse to the location of your damaged archive.pst
• Click 'Start' to start the recovery process
• Try to open the file in question again. The corruption problem should not exist.