11:13:09 Enable Cell Caching using MemoryGZip method<br />11:13:09 Create new PHPExcel object<br />11:13:09 Set properties<br />11:13:09 Add data<br />11:13:09 Hide 'Phone' and 'fax' columns<br />11:13:09 Set outline levels<br />11:13:09 Freeze panes<br />11:13:09 Rows to repeat at top<br />11:13:09 Write to Excel2007 format<br />11:13:11 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.4141 seconds<br />11:13:11 Current memory usage: 23.25 MB<br />11:13:11 Peak memory usage: 26.75 MB<br />11:13:11 Done writing file<br />File has been created in /var/www/dolphin/vendor/phpoffice/phpexcel/Examples<br />