01:06:30 Enable Cell Caching using SQLite3 method<br />01:06:30 Create new PHPExcel object<br />01:06:30 Set properties<br />01:06:30 Add data<br />01:06:30 Hide 'Phone' and 'fax' columns<br />01:06:30 Set outline levels<br />01:06:30 Freeze panes<br />01:06:30 Rows to repeat at top<br />01:06:30 Write to Excel2007 format<br />01:06:31 File written to 06largescale-with-cellcaching-sqlite3.xlsx<br />Call time to write Workbook was 0.8091 seconds<br />01:06:31 Current memory usage: 14 MB<br />01:06:31 Peak memory usage: 20 MB<br />01:06:31 Done writing file<br />File has been created in /home/autourdey/invoice/vendor/phpoffice/phpexcel/Examples<br />