10:39:06 Load Test from Excel2007 file 32readwriteAreaChart1.xlsx<br />10:39:06 Iterate worksheets looking at the charts<br />Worksheet: Data<br />    chart1 - "Sales"<br />             areaChart<br />10:39:06 Write Tests to Excel2007 file <br /><br />
<b>Fatal error</b>:  Uncaught Error: Class 'PHPExcel_Calculation_Functions' not found in /home/tyesolutions/public_html/lib/excel/Classes/PHPExcel/Writer/Excel2007.php:213
Stack trace:
#0 /home/tyesolutions/public_html/lib/excel/Tests/32chartreadwrite.php(119): PHPExcel_Writer_Excel2007-&gt;save('32readwriteArea...')
#1 {main}
  thrown in <b>/home/tyesolutions/public_html/lib/excel/Classes/PHPExcel/Writer/Excel2007.php</b> on line <b>213</b><br />