19:51:36 Unable to set Cell Caching using SQLite method, reverting to memory<br />19:51:36 Create new PHPExcel object<br />19:51:36 Set properties<br />19:51:36 Add data<br />19:51:36 Hide 'Phone' and 'fax' columns<br />19:51:36 Set outline levels<br />19:51:36 Freeze panes<br />19:51:36 Rows to repeat at top<br />19:51:36 Write to Excel2007 format<br />19:51:36 File written to 06largescale-with-cellcaching-sqlite.xlsx<br />Call time to write Workbook was 0.4211 seconds<br />19:51:36 Current memory usage: 22 MB<br />19:51:36 Peak memory usage: 26 MB<br />19:51:36 Done writing file<br />File has been created in /var/www/customs_yiao/vendor/phpoffice/phpexcel/Examples<br />