13:09:09 Enable Cell Caching using MemoryGZip method<br />13:09:09 Create new PHPExcel object<br />13:09:09 Set properties<br />13:09:09 Add data<br />13:09:09 Hide 'Phone' and 'fax' columns<br />13:09:09 Set outline levels<br />13:09:09 Freeze panes<br />13:09:09 Rows to repeat at top<br />13:09:10 Write to Excel2007 format<br />13:09:11 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 0.9689 seconds<br />13:09:11 Current memory usage: 20 MB<br />13:09:11 Peak memory usage: 26 MB<br />13:09:11 Done writing file<br />File has been created in /var/www/html/unhlsims/vendor/phpoffice/phpexcel/Examples<br />