08:06:43 Create new PHPExcel object
08:06:43 Add some data and formulas
08:06:43 Calculated data
Value of A1 [=B1]: 100
Value of B1 [=A1+1]: 100
Value of A2 [=B2+1]: 100
Value of B2 [=A2]: 99
08:06:43 Write to Excel2007 format
08:06:43 File written to 13calculationCyclicFormulae.xlsx
Call time to write Workbook was 0.0104 seconds
08:06:43 Current memory usage: 6 MB
08:06:43 Peak memory usage: 6 MB
08:06:43 Done writing file
File has been created in /var/www/html/examcontroller-web/vendor/phpoffice/phpexcel/Examples