19:49:59 Create new PHPExcel object<br />19:49:59 Add some data and formulas<br />19:49:59 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 />19:50:00 Write to Excel2007 format<br />19:50:00 File written to 13calculationCyclicFormulae.xlsx<br />Call time to write Workbook was 0.0227 seconds<br />19:50:00 Current memory usage: 6 MB<br />19:50:00 Peak memory usage: 6 MB<br />19:50:00 Done writing file<br />File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples<br />