21:10:03 Enable Cell Caching using MemoryGZip method<br />21:10:03 Create new PHPExcel object<br />21:10:03 Set properties<br />21:10:03 Add data<br />21:10:03 Hide 'Phone' and 'fax' columns<br />21:10:03 Set outline levels<br />21:10:03 Freeze panes<br />21:10:03 Rows to repeat at top<br />21:10:05 Write to Excel2007 format<br />21:10:08 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.6851 seconds<br />21:10:08 Current memory usage: 17.5 MB<br />21:10:08 Peak memory usage: 20.25 MB<br />21:10:08 Done writing file<br />File has been created in D:\www\rict\doh\vendor\phpoffice\phpexcel\Examples<br />