23:27:23 Enable Cell Caching using SQLite3 method<br />23:27:23 Create new PHPExcel object<br />23:27:23 Set properties<br />23:27:23 Add data<br />23:27:23 Hide 'Phone' and 'fax' columns<br />23:27:23 Set outline levels<br />23:27:23 Freeze panes<br />23:27:23 Rows to repeat at top<br />23:27:23 Write to Excel2007 format<br />23:27:24 File written to 06largescale-with-cellcaching-sqlite3.xlsx<br />Call time to write Workbook was 0.8063 seconds<br />23:27:24 Current memory usage: 14 MB<br />23:27:24 Peak memory usage: 20 MB<br />23:27:24 Done writing file<br />File has been created in /home/autourdey/invoice/vendor/phpoffice/phpexcel/Examples<br />