You can use the Nokia PC Suite program to export the contacts from an *.nbf file to a CSV format and then use any of the available CSV to VCF converters to get your vCard contacts file.
Convert Nokia PC Suite phone backup to Comma Separated Value.
We have found 2 software records in our database eligible for .nfb to .csv file format conversion.
Microsoft Windows software - convert nfb to csv on Windows
Nokia NbuExplorer is a free explorer for Nokia NBU files.
Convert from nfb file
to csv file
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned nfb to csv. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Nokia Suite (also known Nokia PC Suite, Nokia OVI Suite) is set of applications used to manage Nokia mobile phones.
Nokia Suite supports all Nokia phones including smart phones based on Symbian, MeeGo and Maemo operating systems. With Nokia PC Suite users can synchronize data with computer, backup and restore phone, manage files, contacts, calendar, photos etc.
Nokia Suite can connect to phone via USB cable, Bluetooth or infrared. Nokia Suite is distributed as a free software.
Nokia's mobile phone business was acquired by Microsoft.