title: Apache POI Conditional Formatting - getNumConditionalFormattings is always returning 0
body: <p>I'm having trouble with reading the conditional formatting in an Excel Sheet using Apache POI 3.9. The Excel file was created using MS Excel 2010, some conditional formatting was added (I unzipped the .xlsx file, checked the sheet1.xml and it has several <strong>x14:conditionalFormatting</strong> tags) but <strong>sheet.getSheetConditionalFormatting().getNumConditionalFormattings()</strong> always returns 0. I can read other properties, including merged cells, without problems. Am I missing something?</p>
  
  <p>Thanks!</p>