21:20:13 Create new PHPExcel object<br />21:20:13 Add some data and formulas<br />21:20:13 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 />21:20:13 Write to Excel2007 format<br />21:20:13 File written to 13calculationCyclicFormulae.xlsx<br />Call time to write Workbook was 0.0227 seconds<br />21:20:13 Current memory usage: 6 MB<br />21:20:13 Peak memory usage: 6 MB<br />21:20:13 Done writing file<br />File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples<br />