07:06:53 Enable Cell Caching using MemoryGZip method<br />07:06:53 Create new PHPExcel object<br />07:06:53 Set properties<br />07:06:53 Add data<br />07:06:53 Hide 'Phone' and 'fax' columns<br />07:06:53 Set outline levels<br />07:06:53 Freeze panes<br />07:06:53 Rows to repeat at top<br />07:06:54 Write to Excel2007 format<br />07:06:57 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.5186 seconds<br />07:06:57 Current memory usage: 22 MB<br />07:06:57 Peak memory usage: 26 MB<br />07:06:57 Done writing file<br />File has been created in /var/www/html/petroerp3/vendor/phpoffice/phpexcel/Examples<br />