18:56:07 Enable Cell Caching using MemoryGZip method<br />18:56:07 Create new PHPExcel object<br />18:56:07 Set properties<br />18:56:07 Add data<br />18:56:07 Hide 'Phone' and 'fax' columns<br />18:56:07 Set outline levels<br />18:56:07 Freeze panes<br />18:56:07 Rows to repeat at top<br />18:56:08 Write to Excel2007 format<br />18:56:10 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.2210 seconds<br />18:56:10 Current memory usage: 18 MB<br />18:56:10 Peak memory usage: 24 MB<br />18:56:10 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />