What role does data normalization play before converting Excel contacts?

[Tim_David]

Data normalization is about consistency. Phones and contact apps expect predictable patterns. If one row uses country codes and another doesn’t, or if phone numbers are stored in different formats, conversion results become unreliable. Excel allows all of this flexibility, but contact formats don’t. Normalizing data means standardizing formats, removing empty rows, and aligning column usage. This step makes conversion predictable. An Excel to VCF Converter works best when the source data follows clear rules. Tools like Softaken Excel to VCF Converter benefit from normalized input because they can map fields accurately and produce clean, usable vCard files across devices.