17:55:05 Enable Cell Caching using MemoryGZip method
17:55:05 Create new PHPExcel object
17:55:05 Set properties
17:55:05 Add data
17:55:05 Hide 'Phone' and 'fax' columns
17:55:05 Set outline levels
17:55:05 Freeze panes
17:55:05 Rows to repeat at top
17:55:06 Write to Excel2007 format
17:55:08 File written to 06largescale-with-cellcaching.xlsx
Call time to write Workbook was 1.7039 seconds
17:55:08 Current memory usage: 23.5 MB
17:55:08 Peak memory usage: 26.75 MB
17:55:08 Done writing file
File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples