You can read this blog if you want to learn how to open an NSF file manually. However, because manual processes have various drawbacks, I recommend using a third-party Lotus Notes NSF Converter tool. NSF files can be exported to PST and other file
formats such as EML, EMLX, MBOX, and MSG. It does, however, provide a free demo edition to test its functionality and analyze the first 10 emails. It offers a simple user interface that both technical and non-technical users can use. It runs swiftly on
all Windows OS editions.
For More Information:-
https://www.sysessential.com/nsf-to-pst-converter/
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