08:57:22 Write to Excel2007 format<br />08:57:22 File written to 33chartcreate-bar-stacked.xlsx<br />08:57:22 Peak memory usage: 5.25 MB<br />08:57:22 Done writing file<br />File has been created in C:\phpEnv\www\wft\php\export\PHPExcel\Examples<br />