23:31:03 Enable Cell Caching using MemoryGZip method<br />23:31:03 Create new PHPExcel object<br />23:31:03 Set properties<br />23:31:03 Add data<br />23:31:03 Hide 'Phone' and 'fax' columns<br />23:31:03 Set outline levels<br />23:31:03 Freeze panes<br />23:31:03 Rows to repeat at top<br />23:31:05 Write to Excel2007 format<br />23:31:10 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 5.0377 seconds<br />23:31:10 Current memory usage: 23.5 MB<br />23:31:10 Peak memory usage: 26.75 MB<br />23:31:10 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />