21:24:27 Enable Cell Caching using MemoryGZip method<br />21:24:27 Create new PHPExcel object<br />21:24:27 Set properties<br />21:24:27 Add data<br />21:24:27 Hide 'Phone' and 'fax' columns<br />21:24:27 Set outline levels<br />21:24:27 Freeze panes<br />21:24:27 Rows to repeat at top<br />21:24:28 Write to Excel2007 format<br />21:24:30 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.2368 seconds<br />21:24:30 Current memory usage: 24 MB<br />21:24:30 Peak memory usage: 28 MB<br />21:24:30 Done writing file<br />File has been created in /home/htdocs/zhyl/vendor/PHPExcel/Examples<br />