18:06:20 Enable Cell Caching using MemoryGZip method<br />18:06:20 Create new PHPExcel object<br />18:06:20 Set properties<br />18:06:20 Add data<br />18:06:20 Hide 'Phone' and 'fax' columns<br />18:06:20 Set outline levels<br />18:06:20 Freeze panes<br />18:06:20 Rows to repeat at top<br />18:06:21 Write to Excel2007 format<br />18:06:23 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.0565 seconds<br />18:06:23 Current memory usage: 16 MB<br />18:06:23 Peak memory usage: 20 MB<br />18:06:23 Done writing file<br />File has been created in /var/www/html/TECORSA/vendor/phpoffice/phpexcel/Examples<br />