03:17:59 Enable Cell Caching using MemoryGZip method<br />03:17:59 Create new PHPExcel object<br />03:17:59 Set properties<br />03:17:59 Add data<br />03:17:59 Hide 'Phone' and 'fax' columns<br />03:17:59 Set outline levels<br />03:17:59 Freeze panes<br />03:17:59 Rows to repeat at top<br />03:18:00 Write to Excel2007 format<br />03:18:00 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 0.7167 seconds<br />03:18:00 Current memory usage: 20 MB<br />03:18:00 Peak memory usage: 26 MB<br />03:18:00 Done writing file<br />File has been created in /home/autourdey/invoice/vendor/phpoffice/phpexcel/Examples<br />