05:43:50 Create new PHPExcel object<br />05:43:50 Add some data and formulas<br />05:43:50 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 />05:43:50 Write to Excel2007 format<br />05:43:50 File written to 13calculationCyclicFormulae.xlsx<br />Call time to write Workbook was 0.0018 seconds<br />05:43:50 Current memory usage: 2 MB<br />05:43:50 Peak memory usage: 2 MB<br />05:43:50 Done writing file<br />File has been created in /var/www/html/test/public/vendor/phpoffice/phpexcel/Examples<br />