1. In Outlook, Select File > Open & Export > Open Outlook Data File.
2. Browse to, and then select the Outlook Data File (.pst), and then select Open.
3. Once you open the Outlook Data File (.pst), the file will appear in your folder pane. Usually you'll find it at the bottom of the list of folders. The following image is an example. The name of your Outlook Data File (.pst) will likely not be Outlook Data File. Usually, the name is based on the account the file is associated with. For example, an Outlook Data File for the account Cheryl.Parsons64@yahoo.com will likely be named Cheryl Parsons or Cheryl.Parsons64@yahoo.com.
3a. You will then expand the ‘Top of Information Store’ tab to view the Inbox and other Folders