Sponsored Links: To convert NSF file to PST format, you can use Import-Export method of conversion. In this method first you need to Export all NSF file data and then Import all exported items to Outlook PST format. This method is very easy to use and give the accurate result without any error messages. Using this solution, no need of any professional NSF to PST converter tool. Follow manual conversion procedure, here:- Convert NSF file into PST.