WhatsApp doesn't save the contacts differently; it depends on the phone's central address book. So people have to save their phone contacts as a VCF file first. After that, changing them into CSV is quite easy if the vCard coming from the phone is understandable. Most of the phones are using VCF 3.0 or 4.0 so it is necessary that the tool can support different versions. WholeClear vCard to CSV Converter can convert 2.1, 3.0, and 4.0 without any problem and it also can keep the fields if the users are converting VCF to CSV. It is compatible with all Windows versions, so there is no problem with the installation. There is also a free demo, which allows users to convert a few entries at first and then check if WhatsApp contacts are shown correctly.