12:55:45 Enable Cell Caching using MemoryGZip method<br />12:55:45 Create new PHPExcel object<br />12:55:45 Set properties<br />12:55:45 Add data<br />12:55:45 Hide 'Phone' and 'fax' columns<br />12:55:45 Set outline levels<br />12:55:45 Freeze panes<br />12:55:45 Rows to repeat at top<br />12:55:46 Write to Excel2007 format<br />12:55:46 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 0.7233 seconds<br />12:55:46 Current memory usage: 20 MB<br />12:55:46 Peak memory usage: 26 MB<br />12:55:46 Done writing file<br />File has been created in /home/autourdey/invoice/vendor/phpoffice/phpexcel/Examples<br />