From Nucleus Data Recovery:
Lotus Notes to Outlook - software to convert lotus notes to outlook email databases helps system administrators to successfully convert .nsf file to .pst file. Migrating from Lotus Notes to Outlook has been made easy with the software. Lotus Notes to Outlook is the easy way to exit from Notes.
You can easily convert emails, attachments, images, drafts, sent items, journals, calendar, to-do list, appointments, tasks, address book, folder and sub-folders of .NSF file to .PST or Exchange Server.
Version: Lotus Notes to Outlook Conversion 8.06.01
Really, good software but you can also try RecoveryFix for Lotus Notes to Outlook conversion software to convert NSF file to PST file format. More details see here: http://www.lotusnotestoexchange.org/
See also demo: https://www.youtube.com/watch?v=JAZnQKo0jNs