12:05:33 Enable Cell Caching using MemoryGZip method<br />12:05:33 Create new PHPExcel object<br />12:05:33 Set properties<br />12:05:33 Add data<br />12:05:33 Hide 'Phone' and 'fax' columns<br />12:05:33 Set outline levels<br />12:05:33 Freeze panes<br />12:05:33 Rows to repeat at top<br />12:05:35 Write to Excel2007 format<br />12:05:37 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.0799 seconds<br />12:05:37 Current memory usage: 27.5 MB<br />12:05:37 Peak memory usage: 31 MB<br />12:05:37 Done writing file<br />File has been created in /var/www/dolphin/vendor/phpoffice/phpexcel/Examples<br />