21:22:21 Unable to set Cell Caching using SQLite3 method, reverting to memory<br />21:22:21 Create new PHPExcel object<br />21:22:21 Set properties<br />21:22:21 Add data<br />21:22:21 Hide 'Phone' and 'fax' columns<br />21:22:21 Set outline levels<br />21:22:21 Freeze panes<br />21:22:21 Rows to repeat at top<br />21:22:21 Write to Excel2007 format<br />21:22:21 File written to 06largescale-with-cellcaching-sqlite3.xlsx<br />Call time to write Workbook was 0.4329 seconds<br />21:22:21 Current memory usage: 20 MB<br />21:22:21 Peak memory usage: 24 MB<br />21:22:21 Done writing file<br />File has been created in /var/www/mail_center/vendor/phpoffice/phpexcel/Examples<br />