The safest way to convert CSV to vCard manually is by opening the CSV file in Excel or Google Sheets, carefully verifying all contact fields, and then mapping them to vCard attributes using a trusted script or converter before saving as a VCF file. While this method can work for small files, it has major limitations—it is slow, requires technical accuracy, lacks validation, and increases the risk of data mismatch or contact loss, especially with large datasets. For maximum safety, the CloudMigration CSV to VCF Converter Tool is the best option. It ensures secure and accurate conversion, automatically maps fields, supports bulk files, preserves complete contact details, and generates error-free vCard files without any data loss.