04:17:08 Enable Cell Caching using MemoryGZip method<br />04:17:08 Create new PHPExcel object<br />04:17:08 Set properties<br />04:17:08 Add data<br />04:17:08 Hide 'Phone' and 'fax' columns<br />04:17:08 Set outline levels<br />04:17:08 Freeze panes<br />04:17:08 Rows to repeat at top<br />04:17:08 Write to Excel2007 format<br />04:17:09 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 0.7205 seconds<br />04:17:09 Current memory usage: 20 MB<br />04:17:09 Peak memory usage: 26 MB<br />04:17:09 Done writing file<br />File has been created in /home/autourdey/invoice/vendor/phpoffice/phpexcel/Examples<br />