20:33:10 Write to Excel2007 format<br />20:33:10 File written to 33chartcreate-bar-stacked.xlsx<br />20:33:10 Peak memory usage: 7.5 MB<br />20:33:10 Done writing file<br />File has been created in C:\wamp64\www\old_bo\bo\vendor\phpoffice\phpexcel\Examples<br />