21:20:20 Enable Cell Caching using MemoryGZip method<br />21:20:20 Create new PHPExcel object<br />21:20:20 Set properties<br />21:20:20 Add data<br />21:20:20 Hide 'Phone' and 'fax' columns<br />21:20:20 Set outline levels<br />21:20:20 Freeze panes<br />21:20:20 Rows to repeat at top<br />21:20:21 Write to Excel2007 format<br />21:20:23 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.3321 seconds<br />21:20:23 Current memory usage: 24 MB<br />21:20:23 Peak memory usage: 30 MB<br />21:20:23 Done writing file<br />File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples<br />