19:20:15 Unable to set Cell Caching using SQLite method, reverting to memory<br />19:20:15 Create new PHPExcel object<br />19:20:15 Set properties<br />19:20:15 Add data<br />19:20:15 Hide 'Phone' and 'fax' columns<br />19:20:15 Set outline levels<br />19:20:15 Freeze panes<br />19:20:15 Rows to repeat at top<br />19:20:15 Write to Excel2007 format<br />19:20:16 File written to 06largescale-with-cellcaching-sqlite.xlsx<br />Call time to write Workbook was 0.6241 seconds<br />19:20:16 Current memory usage: 25.25 MB<br />19:20:16 Peak memory usage: 28.25 MB<br />19:20:16 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />