12:02:11 Create new PHPExcel object
12:02:11 Add some data and formulas
12:02:11 Calculated data
Value of A1 [=B1]: 100
Value of B1 [=A1+1]: 100
Value of A2 [=B2+1]: 100
Value of B2 [=A2]: 99
12:02:11 Write to Excel2007 format
12:02:11 File written to 13calculationCyclicFormulae.xlsx
Call time to write Workbook was 0.0037 seconds
12:02:11 Current memory usage: 2 MB
12:02:11 Peak memory usage: 2 MB
12:02:11 Done writing file
File has been created in /var/www/erp/PHPExcel-1.8-/Examples