As monkey_boy said, this really is an HTML question.  And his suggestion of putting <pre> ... </pre> tags around it is a very good idea.

You could also use <p> tags before every new paragraph.  Or <br>, to cause a line break.

By the way, you really should check the result of opening files; eg.:

open (FILE, "c:/perl/directory.xml") or die "Can't read file 'director
+y.xml' ($!)\n";
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