How to open Lotus Notes NSF file in Outlook? This is a very tuff task for everyone and much manual method is available in the marketing but no one works, so I go with eSoftTools NSF to PST converter software that quickly open lotus notes NSF file in Outlook without any hassle. In this software, you can convert bulk NSF files into a PST format by using simple 4 to 5 clicks. In this software, you can also convert selected data files.