ppt reading

[puneetratan]

Hello All,
I am stuck with one problem, plz share your valuable suggestions to
me.
my problem is i need to read a ppt(power point ) file in php and after
that have to make the thumbnail image of every slide which is in ppt
file..

But still i am not able how to read ppt file in php.

i used this code , but it display something binary.

$myFile = $_SERVER['DOCUMENT_ROOT'].'test/test.ppt';
$fh = fopen($myFile, 'r');
$theData = fread($fh, filesize($myFile));
fclose($fh);
echo $theData;