Several times my contacts have been copied between my devices, and after matching, my contact list was full of hundreds of duplicates. Convert CSV to VCF with the correct CSV to vCard converter solved that problem for me. The program went through the file, found duplicate records, and combined them, so it resulted in a neat and accurate VCF file. Every contact was there, with all information properly arranged. Also, bulk conversion was supported by the tool, through which a few hours of manual cleanup were saved. After that, I resorted to the GainTools vCard to CSV Converter to create a backup of a well-organized and easily accessible contact database across all my devices.
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