The mapping process in Softaken Software Excel to VCF Converter instructs the tool which Excel column is Name, which is Phone, Email, etc.

Here is how to do it correctly-
Open the Excel file in the application.
Every column from your Excel sheet will be displayed.
Select the correct vCard field for each column, for instance
Full Name in Excel -> Name in vCard
Mobile Number Phone in Excel
Email ID Email in Excel

If you have multiple phone numbers or emails, map them to different fields. Check formatting and spelling, giving special attention to phone numbers. Convert after mapping, and your vCard will have accurate contact information.