21:31:33 Enable Cell Caching using MemoryGZip method<br />21:31:33 Create new PHPExcel object<br />21:31:33 Set properties<br />21:31:33 Add data<br />21:31:33 Hide 'Phone' and 'fax' columns<br />21:31:33 Set outline levels<br />21:31:33 Freeze panes<br />21:31:33 Rows to repeat at top<br />21:31:33 Write to Excel2007 format<br />21:31:34 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 0.9508 seconds<br />21:31:34 Current memory usage: 20 MB<br />21:31:34 Peak memory usage: 22 MB<br />21:31:34 Done writing file<br />File has been created in /home/myitalianu/itdepartment/vendor/phpoffice/phpexcel/Examples<br />