09:06:31 Create new PHPExcel object
09:06:31 Add some data and formulas
09:06:31 Calculated data
Value of A1 [=B1]: 100
Value of B1 [=A1+1]: 100
Value of A2 [=B2+1]: 100
Value of B2 [=A2]: 99
09:06:31 Write to Excel2007 format
09:06:31 File written to 13calculationCyclicFormulae.xlsx
Call time to write Workbook was 0.0243 seconds
09:06:31 Current memory usage: 6 MB
09:06:31 Peak memory usage: 6 MB
09:06:31 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples