Exibir página html dentro de uma nav-tab do Bootstrap

Boa tarde Pessoal,

Sou novato em front-end. Por gentileza, poderiam me ajudar?

Estou com problemas para exibir uma página html dentro de um nav-tab do boorstrap. Se eu remover o atributo “data-toggle=“tab”” da aba “Users” a página é exibida porém as abas somem. Quero que exiba a página sem as abas sumirem.

Meu index.html:

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>Bootstrap CRUD Data Table for Database with Modal Form</title>
	<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto|Varela+Round">
	<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
	<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
	<link rel="stylesheet" href="css/padrao.css">
	<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
	<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
	<script type="text/javascript" src="js/users.js"></script>
</head>
<body>
	<ul class="nav nav-tabs">
		<li class="nav-item">
			<a class="nav-link active" data-toggle="tab" href="#home">Home</a>
		</li>
		<li class="nav-item">
			<a class="nav-link" data-toggle="tab" href="#menu1">Menu 1</a>
		</li>
		<li class="nav-item">
			<a class="nav-link" data-toggle="tab" href="users.html">Users</a>
		</li>
	</ul>
</body>
</html>