First, open the Microsoft Office application, click “File” and then select Open & Export > Open Outlook Data File.
Browse to the PST file you want to open and click “OK.”
The PST will appear at the bottom of the navigation pane as “Outlook Data File.”
Browse the folders in the PST like any other folder in Outlook.
If you have multiple PST files open, or if you want to remind yourself what the file is, you can change its name from the default “Outlook Data File” to something more meaningful
Right-click “Outlook Data File” and choose “Data File Properties” from the menu.
Click the “Advanced” button.
Change the “Name” field to a more meaningful name.
