17:30:15 Enable Cell Caching using MemoryGZip method<br />17:30:15 Create new PHPExcel object<br />17:30:15 Set properties<br />17:30:15 Add data<br />17:30:15 Hide 'Phone' and 'fax' columns<br />17:30:15 Set outline levels<br />17:30:15 Freeze panes<br />17:30:15 Rows to repeat at top<br />17:30:15 Write to Excel2007 format<br />17:30:17 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.7251 seconds<br />17:30:17 Current memory usage: 28 MB<br />17:30:17 Peak memory usage: 31 MB<br />17:30:17 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />