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- Dec 1, 2025
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Honestly, many online converters are risky because you upload your personal contact data to unknown servers, so there is a huge chance of data leak, and there is no guarantee how your data is stored or used. What's next? You can use an offline utility, because offline solutions are completely safe, but not at all; use trusted software or a tool. Offline tools keep everything on your system and do not require internet access. If you want trustworthy offline software, then I can suggest the best offline tool that is compatible with all Windows systems, which is called WholeClear CSV to VCF Converter. I also use this tool when I need to transfer my CSV contacts into VCF. This is much safer for personal or business contacts. If privacy matters to you, avoid online converters and choose a secure, offline way to convert CSV files into VCF format.