21:49:00 Enable Cell Caching using MemoryGZip method<br />21:49:00 Create new PHPExcel object<br />21:49:00 Set properties<br />21:49:00 Add data<br />21:49:00 Hide 'Phone' and 'fax' columns<br />21:49:00 Set outline levels<br />21:49:00 Freeze panes<br />21:49:00 Rows to repeat at top<br />21:49:00 Write to Excel2007 format<br />21:49:02 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.4975 seconds<br />21:49:02 Current memory usage: 18 MB<br />21:49:02 Peak memory usage: 22 MB<br />21:49:02 Done writing file<br />File has been created in /var/www/html/petroerp3/vendor/phpoffice/phpexcel/Examples<br />