- Open Outlook on your computer.
Select File > Open & Export > Open Outlook Data File.
Browse to the file's location and Select the Outlook Data File (.pst), and then select Open.
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 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 or the name of the PST file you just added.
Note: You can remove an Outlook data file from the Folder pane by closing the file.
In the Folder pane, right-click the name of the Outlook Data File, and select Close "Outlook Data File".