06:14:04 Enable Cell Caching using MemoryGZip method<br />06:14:04 Create new PHPExcel object<br />06:14:04 Set properties<br />06:14:04 Add data<br />06:14:04 Hide 'Phone' and 'fax' columns<br />06:14:04 Set outline levels<br />06:14:04 Freeze panes<br />06:14:04 Rows to repeat at top<br />06:14:05 Write to Excel2007 format<br />06:14:07 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.5022 seconds<br />06:14:07 Current memory usage: 16 MB<br />06:14:07 Peak memory usage: 20 MB<br />06:14:07 Done writing file<br />File has been created in /var/www/html/petroerp3/vendor/phpoffice/phpexcel/Examples<br />