When clicking on Import visitors you will be prompted to select the location for the csv file to be imported from, you also have the option to select one of the defined groups to import the records into.
Once you have selected the file, any matching column headers found in the csv file will be mapped to the corresponding fields in the database. You will also see examples from the first entry in the csv file so you can make sure the data is matched to the correct columns.
Any column names that do not match those withing the CardExchange® Visitor database will show as unmapped, you can then click on map to choose the desired column to map them to.
Simply select the desired field from the database and click on add to map the csv column to this field.