The way which is easy to adapt to convert Lotus Notes NSF database is by using a tool like eSoftTools NSF file Converter Software. The user just needs to open this tool and provide the .nsf file and then choose the mailbox items which are needed after seeing the preview of the database in the understandable format. Then choose the file format of the result as per the choice. There are 9 different file formats- EML, EMLX, HTML, MSG, vCard, PST, and others. The tool can be helpful to restore corrupted data. A free data is also offered to all users with support to all editions of Lotus Notes.
Explore more ways to export NSF to PST file here.