Since mobile devices are not strong at handling CSV files directly, it is necessary to have a correct conversion from CSV to VCF before the import. I had a similar problem when I was moving my contacts from Outlook. Just in a moment a CSV to vCard Converter made it perfect—it generated neat VCF files with all the names, emails, and numbers being the right fields of the files. After that, I was free to import them into my Android without it giving me any errors or duplicates. If at any time you want to update your files, you can simply convert them with GainTools vCard to CSV Converter, which gave me the flexibility of making a safe backup between devices and files.
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