To save the contact file vCard (.vcf) to Lotus Notes format, I prefer using the tool instead of the manual method because the manual method causes a lot of problems. So I would like to suggest you use the WholeClear VCF to NSF Converter tool. This tool claims to keep 100% of data secure. It saves VCF files to NSF format in 4 easy steps with minimal time. This app saves your contact file in all versions of Lotus Notes: 10.0, 9.0, 8.0, 7.0, and 6.0. It supports all vCard files like vCard 2.1, 3.0, and 4.0, and all contact files like Outlook, Google Contacts, Skype, etc., in Lotus Notes (.nsf) format. For more information, you can also use its free trial version; it will save 25 VCF files in NSF format.