20:06:23 Enable Cell Caching using MemoryGZip method<br />20:06:23 Create new PHPExcel object<br />20:06:23 Set properties<br />20:06:23 Add data<br />20:06:23 Hide 'Phone' and 'fax' columns<br />20:06:23 Set outline levels<br />20:06:23 Freeze panes<br />20:06:23 Rows to repeat at top<br />20:06:25 Write to Excel2007 format<br />20:06:28 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.3743 seconds<br />20:06:28 Current memory usage: 23.25 MB<br />20:06:28 Peak memory usage: 26.5 MB<br />20:06:28 Done writing file<br />File has been created in /home/hsinlung/public_html/core/vendor/phpoffice/phpexcel/Examples<br />