The most straightforward way to convert contacts from an NSF file to VCF format is to utilize a reputable tool like TrustVare Contacts Manager.  This application serves as a professional NSF to VCF converter, allowing for mass conversion while preserving all contact information.  It maintains all details such as names, emails, phone numbers, and addresses and creates a vCard files that can easily be imported into Outlook, Android smartphones, and iCloud. I utilized this NSF to vCard Converter to move from Lotus Notes, and the entire procedure was simple and quick.  If you want to convert NSF to VCF without any work, this software is definitely worth a look.