10:59:23 Enable Cell Caching using MemoryGZip method<br />10:59:23 Create new PHPExcel object<br />10:59:23 Set properties<br />10:59:23 Add data<br />10:59:23 Hide 'Phone' and 'fax' columns<br />10:59:23 Set outline levels<br />10:59:23 Freeze panes<br />10:59:23 Rows to repeat at top<br />10:59:24 Write to Excel2007 format<br />10:59:27 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.4062 seconds<br />10:59:27 Current memory usage: 20 MB<br />10:59:27 Peak memory usage: 26 MB<br />10:59:27 Done writing file<br />File has been created in /var/www/php7.3/fed/vendor/phpoffice/phpexcel/Examples<br />