00:20:20 Create new PHPExcel object
00:20:20 Add some data and formulas
00:20:20 Calculated data
Value of A1 [=B1]: 100
Value of B1 [=A1+1]: 100
Value of A2 [=B2+1]: 100
Value of B2 [=A2]: 99
00:20:20 Write to Excel2007 format
00:20:20 File written to 13calculationCyclicFormulae.xlsx
Call time to write Workbook was 0.0220 seconds
00:20:20 Current memory usage: 6 MB
00:20:20 Peak memory usage: 6 MB
00:20:20 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples