Include custom cell with xib

TableViewController.swift

override func viewDidLoad() {
    super.viewDidLoad()

    tableView.register(UINib(nibName: "DataCell", bundle: nil), forCellReuseIdentifier: "DataCell")
}

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "DataCell", for: indexPath) as! DataCell
    
    return cell
}