I have certain text added to all my files. I want to delete that from my files. The text is
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title></title>
</head>
<body>
<form enctype="multipart/form-data" action="/encryption/index.php" method="POST">
</form>
I want to include everything after but not above it. How can I do that