05:12:29 Enable Cell Caching using MemoryGZip method<br />05:12:29 Create new PHPExcel object<br />05:12:29 Set properties<br />05:12:29 Add data<br />05:12:29 Hide 'Phone' and 'fax' columns<br />05:12:29 Set outline levels<br />05:12:29 Freeze panes<br />05:12:29 Rows to repeat at top<br />05:12:31 Write to Excel2007 format<br />05:12:33 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.0780 seconds<br />05:12:33 Current memory usage: 18 MB<br />05:12:33 Peak memory usage: 24 MB<br />05:12:33 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />