If you are looking for a solution that can open NSF files without Lotus Notes Free, I recommend eSoftTools convert NSF to PST software. This software supports all versions of Windows OS as well as all versions of Lotus Notes. It provides technical support to all users via email or live chat. It includes batch conversion, which allows users to convert NSF files en masse at the same time.

Know More; https://www.esofttools.com/blog/how-to-open-nsf-files-without-lotus-notes-free/