К примеру у меня есть форма reg.php, как сделать, чтоб введенные в нее данные сохранялись в текстовый файл?

[PHP]<br>
<table width="85%" align="center">
<tr>
<form method="POST" action="action.php">
<div align="center"><em><strong></strong></em></div>
<em><strong>
<label for="textfield"></label>
</strong></em>
<div align="center">
<table border="0" align="center" cellpadding="0" cellspacing="5">
<tr>
<td><em><strong>Company</strong></em></td>
<td><em><strong>
<input type="text" name="Company" id="Company">
</strong></em></td>
</tr>
<tr>
<td><em><strong>Address</strong></em></td>
<td><em><strong>
<input type="text" name="Address" id="Address">
</strong></em></td>
</tr>
<tr>
<td><em><strong>Email</strong></em></td>
<td><em><strong>
<input type="text" name="Email" id="Email">
</strong></em></td>
</tr>
<tr>
<td><em><strong>Site</strong></em></td>
<td><em><strong>
<input type="text" name="Site" id="Site">
</strong></em></td>
</tr>
<tr>
<tr>
<td><em><strong>Telefon/Fax</strong></em></td>
<td><em><strong>
<input type="text" name="Telefon" id="Telefon">
</strong></em></td>
</tr>
<tr>
<td><em><strong>Languages_spoken</strong></em></td>
<td><em><strong>
<input type="text" name="Languages_spoken" id="Languages_spoken">
</strong></em></td>
</tr>
<tr>
<td><em><strong>Name</strong></em></td>
<td><em><strong>
<input type="text" name="Name" id="Name">
</strong></em></td>
</tr>
<tr>
<td><em><strong>Sename</strong></em></td>
<td><em><strong>
<input type="text" name="Sename" id="Sename">
</strong></em></td>
</tr>
<tr>
<td><em><strong>Study/Work</strong></em></td>
<td><em><strong>
<input type="text" name="Study_Work" id="Study_Work">
</strong></em></td>
</tr>
</table>
</div>
<p align="center"> <em><strong>
<label for="Submit"></label>
<input type="submit" name="Submit" value="Save" id="Submit">
</strong></em></p>
</form>
</table>
<BR>
<BR>
<BR>
</body>
</html>
[/PHP]

Заранее благодарен!