Microsoft Outlook is a personal information manager from Microsoft, included in the Microsoft Office suite. It can be used as a stand-alone application, or can work with Microsoft Exchange Server and Microsoft SharePoint Server for email, contacts, and calendar sharing.
Outlook stores data in .pst and .ost files. The .pst file is a personal folder file, which stores all of the user’s emails, contacts, and calendar items. The .ost file is an offline folder file, which stores a copy of …
