If you have Lotus Notes(NSF) files and wants to import them to PST Outlook then you can make use of most reliable and easy to use ZOOK
NSF to PST Converter software. It is versatile tool with easy to use interface which provide direct option to export NSF files into PST along with complete mailbox data and attachments. Using this tool, You can import any size of NSF files into PST files. Users can also split big sized NSF file into multiple PST files. It is fully supportable to all versions of Outlook and Lotus Notes. Being a Windows supported program, Users can smoothly run this at any version of Windows system.
Read more-
https://www.zooksoftware.com/nsf-to-pst/