18:28:33 Enable Cell Caching using MemoryGZip method<br />18:28:33 Create new PHPExcel object<br />18:28:33 Set properties<br />18:28:33 Add data<br />18:28:33 Hide 'Phone' and 'fax' columns<br />18:28:33 Set outline levels<br />18:28:33 Freeze panes<br />18:28:33 Rows to repeat at top<br />18:28:34 Write to Excel2007 format<br />18:28:36 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.2071 seconds<br />18:28:36 Current memory usage: 24 MB<br />18:28:36 Peak memory usage: 30 MB<br />18:28:36 Done writing file<br />File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples<br />