To convert an NSF file to PST, I suggest the best solution is called "TrustVare NSF to PST Converter" software. Users can easily stop this application without any help. It can convert single and large NSF files into the Outlook PST file format. You can transform all IBM Notes items, including email, contacts, calendars, notes, tasks, appointments, and attachments. This application is compatible with all Lotus Notes versions, including 12.0, 11.0, 10.0.1, 9.0.1, and 8.5. You can launch the application on any Windows operating system and any version of MS Outlook. Users can test the free demo versions before purchasing them.