I have contact files exported from different sources (like Android phones, old backups, and Outlook), all saved as separate VCF files. I am looking for an efficient way to merge these multiple VCF files into a single VCF file without risking duplicate entries or losing any contact details (like emails, numbers, photos, etc). Has anyone faced a similar situation? Could you please suggest a reliable method or a trusted VCF merger tool to do this safely?