Simply use the SYSessential NSF to PST Converter Software, which is the most popular and simple-to-use tool. It is the best data conversion application available. It converts NSF files to PST, EML, EMLX, MSG, and a variety of other accessible file formats with 100% safety and reliability.
Conversion of NSF to PST:
Step 1) Launch the Microsoft Outlook application.
Step 2) Go to the open tab and select the import button.
Step 3) The Import Wizard will appear.Click on Import from another file, then click on Next.
Step 4: Select the comma-separated value option and then press the Next button.
Step 5) Go to the folder where you saved the file and select your MS Outlook mailbox.
Step 6) Click on "finish."