07:27:56 Enable Cell Caching using SQLite3 method<br />07:27:56 Create new PHPExcel object<br />07:27:56 Set properties<br />07:27:56 Add data<br />07:27:56 Hide 'Phone' and 'fax' columns<br />07:27:56 Set outline levels<br />07:27:56 Freeze panes<br />07:27:56 Rows to repeat at top<br />07:27:56 Write to Excel2007 format<br />07:27:57 File written to 06largescale-with-cellcaching-sqlite3.xlsx<br />Call time to write Workbook was 0.8177 seconds<br />07:27:57 Current memory usage: 14 MB<br />07:27:57 Peak memory usage: 20 MB<br />07:27:57 Done writing file<br />File has been created in /home/autourdey/invoice/vendor/phpoffice/phpexcel/Examples<br />