17:09:10 Enable Cell Caching using MemoryGZip method
17:09:10 Create new PHPExcel object
17:09:10 Set properties
17:09:10 Add data
17:09:10 Hide 'Phone' and 'fax' columns
17:09:10 Set outline levels
17:09:10 Freeze panes
17:09:10 Rows to repeat at top
17:09:11 Write to Excel2007 format
17:09:13 File written to 06largescale-with-cellcaching.xlsx
Call time to write Workbook was 2.0801 seconds
17:09:13 Current memory usage: 24 MB
17:09:13 Peak memory usage: 30 MB
17:09:13 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples