Handling vCard files from multiple sources often leads to duplicate contacts because the same person may appear in different files with slightly varying details. Trying to clean them manually can be both time-consuming and error-prone. A better approach is to use a tool like SysInfo vCard Duplicate Remover, which can process all your VCF files together. It scans contacts across files, compares key fields such as names, email addresses, and phone numbers, and removes only the duplicate entries. This way, you end up with a single, well-organized contact list without losing important information.
Read more: https://www.sysinfotools.com/vcard-duplicate-remover.php