You can convert NSF file to PST with the help of eSoftTools NSF to PST Converter software. There is the ability to convert multiple NSF files simultaneously. Moreover, it exports all Lotus Notes mailbox items from NSF file to PST, MBOX, Zimbra, MSG, EML, PDF and many other file formats. It also offers a free demo option that allows converting NSF with up to 25 items from each folder for free.
Read more- https://www.esofttools.com/nsf-to-pst-converter.html