Usage:<br>display_file.php?product=qpe6&format=xml&date=20140613<br><br><b>product</b> is one of: qpf6 qpf24 qtf24min qtf24max qte24max qte24min qte6ta qpe6 qpe24 <br><b>format</b> is one of: csv xml<br><b>date</b> is: YYYYMMDD<br>