Download and use the trial version of RecoveryFIX for Lotus Notes to Outlook to convert first 10 emails from each NSF file to PST. But to migrate Domino Server user mailboxes to PST or Exchange, you should have the full version of the software.
Lotus Notes to Outlook Converter 2013 containing many powerful algorithm to resolve the problem of NSF to Outlook Migration. NSF2PST conversion with Export Notes allowed customizing the emails with requirement.
If you are looking free Lotus Notes to Outlook converter tool to convert NSF to PST free of cost, try out Export Notes conversion utility which export Notes NSF emails with attachments to Outlook PST File.