I am new to C#
I want to replace Characters such as("' & < > ¡ ¢ £ ¤ ¥ ¦ § ¨ © ª « ¬ ² ³ ´ µ ¶ · ¸ and so on...) with entity numbers like (" ' & < >   ¡ ¢ £ ¤ ¥ .........) in an html file In C# coding
for example
<html>
<head>
<title>Sample</title>
</head>
<body>
<div>
<h2 class="chapternumber">1</h2>
<p class="epigraph">Regarding the Great Depression. Milton Friedman, November 8, 2002</p>
<p class="indent">'Cutler' plunged to his death Ànddy</p>
<p class="indent">"Mr. Cutler" was reported it.</p>
</div>
</body>
</html>
please help me