If you want to migrate pst file into nsf format then try this software and easily convert pst file into nsf. Visit:- https://www.mailvare.com/free-pst-to-nsf-converter/
If you are looking for OSt to PST then download this software, this Software will help you to Convert your OST to PST file format. http://www.ost.topstconverter.com/
