09:02:01 Create new PHPExcel object<br />09:02:01 Add some data and formulas<br />09:02:01 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 />09:02:01 Write to Excel2007 format<br />09:02:01 File written to 13calculationCyclicFormulae.xlsx<br />Call time to write Workbook was 0.0018 seconds<br />09:02:01 Current memory usage: 2.75 MB<br />09:02:01 Peak memory usage: 3 MB<br />09:02:01 Done writing file<br />File has been created in /var/www/html/PHPExcel-1.8/Examples<br />