Internal Server Error occurs with PHP
<p><a href="http://tvreaderservice.info/forms/xlSheet2.php" rel="nofollow">http://tvreaderservice.info/forms/xlSheet2.php</a></p>

<p><a href="http://tvreaderservice.info/forms/xlSheet2.html" rel="nofollow">http://tvreaderservice.info/forms/xlSheet2.html</a></p>

<p>Both are same page only the extension is different<br>
Internal Server Error is occurring on trying with php what is the problem can you help me?
i just create same html page for testing 
But the html page show all the values
i need to run the page as php </p>
