20:06:45 Enable Cell Caching using MemoryGZip method<br />20:06:45 Create new PHPExcel object<br />20:06:45 Set properties<br />20:06:45 Add data<br />20:06:45 Hide 'Phone' and 'fax' columns<br />20:06:45 Set outline levels<br />20:06:45 Freeze panes<br />20:06:45 Rows to repeat at top<br />20:06:45 Write to Excel2007 format<br />20:06:46 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 0.6972 seconds<br />20:06:46 Current memory usage: 20 MB<br />20:06:46 Peak memory usage: 26 MB<br />20:06:46 Done writing file<br />File has been created in /home/hycmvsgn/heal.co.ke/invoices/vendor/phpoffice/phpexcel/Examples<br />