If you are thinking of exporting NSF to PST file then use eSoftTools NSF Converter Software. This tool is a solution to simply Export data from Lotus Notes database to Outlook PST files with some Clicks of mouse. This software will smoothly export entire emails, contacts, calendars, tasks, journals, and more to Outlook PST. And you also have an option to use a demo edition. In the free demo edition you can convert your25 NSF files into PST for free. And not only PST you can convert into multiple formats.