Step 1: Open your outlook Step 2: On the main tabs, select File. Step 3: On the Account Information page, select Open & Export. Step 4: On the Open page, select Import/Export. Step 5: In the Import and Export Wizard window, select Import from another program or file and click Next >. Step 6: In the Import a File window, select Outlook Data File (.pst) and click Next >. Step 7: In the Import Outlook Data File window, click Browse.... Step 8: Select the .pst file to import and click Open. Step 9: Select desired Options and click Next. Step 10:click Finish.