Read and Convert Multi-Contact VCF Files in C#

CheckVcfIsMultiple.cs

bool hasMultipleContacts = VCardContact.IsMultiContacts("multi_contacts.vcf");

Console.WriteLine("The VCF file contains multiple contacts: " + hasMultipleContacts);

ConvertVcardToOutlookDistributionList.cs

// Create a distribution list from the VCF file
var distributionList = MapiDistributionList.FromVCF("multi_contacts.vcf");

// Save as MSG
distributionList.Save("contacts.msg", new MapiDistributionListSaveOptions(ContactSaveFormat.Msg));

ReadMultipleVcardContacts.cs

// Load all contacts from the VCF file
var contacts = VCardContact.LoadAsMultiple("multi_contacts.vcf");

Console.WriteLine("Total contacts loaded: " + contacts.Count);

foreach (var contact in contacts)
{
    Console.WriteLine("Contact: " + contact.IdentificationInfo.DisplayName);
}

SaveDistributionListToVcf.cs

var saveOptions = new MapiDistributionListSaveOptions(ContactSaveFormat.VCard);

distributionList.Save("saved_contacts.vcf", saveOptions);