If you are trying to convert NSF to MBOX then you should try eSoftTools NSF Converter Software. This software gives you a free demo version to check how smoothly this software works and convert everything of Lotus Notes emails, contacts, notes, task, attachments, and calendars . In the demo version users can convert their 25 NSF files to MBOX for free and this software has a split feature in which users can arrange their oversize NSF files to small size MBOX without any alter of the data.
Read More:- How to Convert NSF to MBOX
