17:32:06 Enable Cell Caching using MemoryGZip method<br />17:32:06 Create new PHPExcel object<br />17:32:06 Set properties<br />17:32:06 Add data<br />17:32:06 Hide 'Phone' and 'fax' columns<br />17:32:06 Set outline levels<br />17:32:06 Freeze panes<br />17:32:06 Rows to repeat at top<br />17:32:07 Write to Excel2007 format<br />17:32:10 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.4950 seconds<br />17:32:10 Current memory usage: 20 MB<br />17:32:10 Peak memory usage: 26 MB<br />17:32:10 Done writing file<br />File has been created in /var/www/html/petroerp3/vendor/phpoffice/phpexcel/Examples<br />