You can try WholeClear CSV to VCF Converter for this. It converts all CSV contact fields like name, number, email and address without losing anything. The tool works completely offline , so your contact data stays safe and private. It also offers a free demo version to check how it performs before buying. I liked that it lets you preview and map each CSV field with vCard fields before export. The conversion happens quickly, even with big contact lists. It's virus-free, lightweight and supports batch conversion , so you can handle multiple files easily. Works perfectly on all Windows versions.