12:31:29 Create new PHPExcel object
12:31:29 Set document properties
12:31:29 Add some data
12:31:29 Add comments
12:31:29 Add rich-text string
12:31:29 Merge cells
12:31:29 Protect cells
12:31:29 Set cell number formats
12:31:29 Set column widths
12:31:29 Set fonts
12:31:29 Set alignments
12:31:29 Set thin black border outline around column
12:31:29 Set thick brown border outline around Total
12:31:29 Set fills
12:31:29 Set style for header row using alternative method
12:31:29 Unprotect a cell
12:31:29 Add a hyperlink to an external website
12:31:29 Add a hyperlink to another cell on a different worksheet within the workbook
12:31:29 Add a drawing to the worksheet
12:31:29 Add a drawing to the worksheet
12:31:29 Add a drawing to the worksheet
12:31:29 Play around with inserting and removing rows and columns
12:31:29 Set header/footer
12:31:29 Set page orientation and size
12:31:29 Rename first worksheet
12:31:29 Create a second Worksheet object
12:31:29 Add some data
12:31:29 Set the worksheet tab color
12:31:29 Set alignments
12:31:29 Set column widths
12:31:29 Set fonts
12:31:29 Add a drawing to the worksheet
12:31:29 Set page orientation and size
12:31:29 Rename second worksheet
12:31:29 Write to HTML format
12:31:29 File written to 17html.htm
Call time to write Workbook was 0.2515 seconds
12:31:29 Current memory usage: 2.25 MB
12:31:29 Peak memory usage: 2.5 MB
12:31:29 Done writing file
File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples