November 26, 2025 4:40 AM PST
Old​​​​​​ Outlook versions (such as 2010 or 2013) implement more strict rules for CSV mapping than the new ones. In case a user attempts to import a common CSV file, Outlook can simply skip the phone numbers, or special characters can be removed in the file. The most efficient way is to convert VCF to Outlook CSV by means of a tool that generates CSVs that are specifically formatted for the older Outlook import structure. Softaken vCard to CSV Converter makes CSV files with columns properly named like Email Address, Mobile Phone, and Home Phone so that there are no errors in reading by Outlook. After the export, it is highly recommended that users take a look at the CSV file in Excel to see if the headers correspond to the Outlook import template. This lowers the chances of contacts that are partly imported as a result of an old version of Outlook, which is the most frequent ​​​​​​problem.
Old Outlook versions (such as 2010 or 2013) implement more strict rules for CSV mapping than the new ones. In case a user attempts to import a common CSV file, Outlook can simply skip the phone numbers, or special characters can be removed in the file. The most efficient way is to convert VCF to Outlook CSV by means of a tool that generates CSVs that are specifically formatted for the older Outlook import structure. Softaken vCard to CSV Converter makes CSV files with columns properly named like Email Address, Mobile Phone, and Home Phone so that there are no errors in reading by Outlook. After the export, it is highly recommended that users take a look at the CSV file in Excel to see if the headers correspond to the Outlook import template. This lowers the chances of contacts that are partly imported as a result of an old version of Outlook, which is the most frequent problem.