To be sure of your VCF files, you can simply look at the contacts with a proper tool before changing them. I was a bit worried about the correctness of my files, so I didn't want to start converting right away; hence, I looked for a VCF to CSV converter having a preview feature. I learned that
WholeClear vCard to CSV Converter provides a facility to open and review contacts before an export of VCF contacts to CSV is made. So, I could have checked all the entries in one place if I had loaded multiple files through
batch VCF to CSV conversion, which it even supports. After the confirmation of the data, I simply clicked on the "Convert" button to make vCard contacts to CSV conversion quick and easy. The resultant CSV file is where everything is perfectly formatted. If you are unsure of which VCF files have the right contacts, then the preview feature is the only way to go.