23:19:21 Enable Cell Caching using MemoryGZip method
23:19:21 Create new PHPExcel object
23:19:21 Set properties
23:19:21 Add data
23:19:21 Hide 'Phone' and 'fax' columns
23:19:21 Set outline levels
23:19:21 Freeze panes
23:19:21 Rows to repeat at top
23:19:23 Write to Excel2007 format
23:19:27 File written to 06largescale-with-cellcaching.xlsx
Call time to write Workbook was 4.0086 seconds
23:19:27 Current memory usage: 25.75 MB
23:19:27 Peak memory usage: 29 MB
23:19:27 Done writing file
File has been created in /var/www/html/onswitch.neon/vendor/phpoffice/phpexcel/Examples