15:06:50 Create new PHPExcel object
15:06:50 Set document properties
15:06:50 Add some data
15:06:50 Add comments
15:06:50 Add rich-text string
15:06:50 Merge cells
15:06:50 Protect cells
15:06:50 Set cell number formats
15:06:50 Set column widths
15:06:50 Set fonts
15:06:50 Set alignments
15:06:50 Set thin black border outline around column
15:06:50 Set thick brown border outline around Total
15:06:50 Set fills
15:06:50 Set style for header row using alternative method
15:06:50 Unprotect a cell
15:06:50 Add a hyperlink to an external website
15:06:50 Add a hyperlink to another cell on a different worksheet within the workbook
15:06:50 Add a drawing to the worksheet
15:06:50 Add a drawing to the worksheet
15:06:50 Add a drawing to the worksheet
15:06:50 Play around with inserting and removing rows and columns
15:06:50 Set header/footer
15:06:50 Set page orientation and size
15:06:50 Rename first worksheet
15:06:50 Create a second Worksheet object
15:06:50 Add some data
15:06:50 Set the worksheet tab color
15:06:50 Set alignments
15:06:50 Set column widths
15:06:50 Set fonts
15:06:50 Add a drawing to the worksheet
15:06:50 Set page orientation and size
15:06:50 Rename second worksheet
15:06:50 Write to HTML format

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Fatal error: Uncaught PHPExcel_Writer_Exception: Could not open file /var/www/html/vendor/phpoffice/phpexcel/Examples/17html.htm for writing. in /var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php:166 Stack trace: #0 /var/www/html/vendor/phpoffice/phpexcel/Examples/17html.php(50): PHPExcel_Writer_HTML->save('/var/www/html/v...') #1 {main} thrown in /var/www/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php on line 166