PST is the file format of Outlook and NSF is of Lotus Notes. Regarding the compatibility and portability of PST, users ended up converting to PST files. It has also been seen that users are migrating from Lotus Notes to Office 365. If you are looking for any of the mentioned processes, you are at the right place.
Weeom Lotus Notes to Office 365 migration tool migrates Lotus Notes to Office 365 as well as converts NSF to PST. It comes with split PST, Mailbox and Folder Mapping, Filter and Preview options and completes the migration and conversion process in relatively no time.
You can use this tool in the free demo version prior to its purchase.