00:21:19 Write to Excel2007 format<br />00:21:19 File written to 33chartcreate-bar-stacked.xlsx<br />00:21:19 Peak memory usage: 4 MB<br />00:21:19 Done writing file<br />File has been created in D:\whospost\dv2\vendor\phpoffice\phpexcel\Examples<br />