Hello Kerry Morris,
As the Barry’s suggestion you need to install Microsoft Outlook to view your emails.If you want to see Emails of your PST File without installation of MS Outlook, then you need to switch on any third party tool. I would like to suggest you a Free PST Viewer Tool to see your PST emails without having Outlook.Click here: http://www.majorgeeks.com/files/details/systools_outlook_pst_viewer.html
Regards