what is outlook data file?
<answer> Outlook Data Files contain your e-mail messages, calendars, contacts, tasks and notes. <context> Outlook Data File (.pst) Outlook Data Files (.pst) contain your e-mail messages, calendars, contacts, tasks, and notes. You must use Outlook to work with the items in a .pst file. When you archive Outlook information, items are saved in a .pst files.