1) Navigate to FILE >> OPEN & EXPORT >> Open Outlook Data File.
2) In the window that pops up, find the PST archive file that you want to add.
a) This should be located in your HOME network drive (H:).
3) If you do not have an H: drive, try mapping directly to the server as shown below
a) In the address bar, type the following: \\ascpilchvm167\home\first name and last name initial
b) Then select the folder with your name on it.
4) Once you find the file, click on OK and it will add it to Outlook in the left panel.