15:40:03 Create new PHPExcel object<br />15:40:03 Add some data and formulas<br />15:40:03 Calculated data<br />Value of A1 [=B1]: 100<br />Value of B1 [=A1+1]: 100<br />Value of A2 [=B2+1]: 100<br />Value of B2 [=A2]: 99<br />15:40:03 Write to Excel2007 format<br />15:40:04 File written to 13calculationCyclicFormulae.xlsx<br />Call time to write Workbook was 0.4844 seconds<br />15:40:04 Current memory usage: 6.25 MB<br />15:40:04 Peak memory usage: 9 MB<br />15:40:04 Done writing file<br />File has been created in C:\wamp\www\fx\addons\yun_shop\vendor\phpoffice\phpexcel\Examples<br />