09:36:19 Enable Cell Caching using MemoryGZip method<br />09:36:19 Create new PHPExcel object<br />09:36:19 Set properties<br />09:36:19 Add data<br />09:36:19 Hide 'Phone' and 'fax' columns<br />09:36:19 Set outline levels<br />09:36:19 Freeze panes<br />09:36:19 Rows to repeat at top<br />09:36:20 Write to Excel2007 format<br />09:36:22 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.6227 seconds<br />09:36:22 Current memory usage: 22 MB<br />09:36:22 Peak memory usage: 26 MB<br />09:36:22 Done writing file<br />File has been created in /var/www/html/gtg-academy/vendor/phpoffice/phpexcel/Examples<br />