function Importcontacts() {
    var contacts = ContactsApp.getContacts(); // Fetches contact list of group
    var ss = SpreadsheetApp.getActiveSpreadsheet(); //Get currently Active sheets
    var sheet = ss.getSheets()[0]; //Get first from active sheets list
    sheet.appendRow(['Full Name', 'Email Address']); // Creating Header
    for (var i in contacts) {
        var fullname = contacts[i].getFullName(); // gets full name of contact
        var emailid = contacts[i].getEmails(); //get emailid of contact
        for (i in emailid) {
            sheet.appendRow([fullname, emailid[i].getAddress()]); // append contact data to active sheet
        }
    }
}