Excel automatically treats contact numbers as numeric values, which removes leading zeros. This issue becomes frustrating during the manual conversion. To solve all these problems, I can suggest a trustworthy solution that I also use. The
Softaken VCF to CSV Converter Software that easily prevents Excel from removing leading zeros. This virus-free
VCF to CSV Converter quickly and accurately exports phone fields as text instead of numbers, keeping every digit intact. When using a tool to export VCF Contacts to CSV, the number formatting remains stable because the converter sets a safe text structure by default. The tool works fully offline, so you do not need internet access. Additionally, you can use this solution on any Windows system. A free demo is also available now for testing.