04:47:21 Create new PHPExcel object
04:47:21 Set document properties
04:47:21 Add some data
04:47:21 Add comments
04:47:21 Add rich-text string
04:47:21 Merge cells
04:47:21 Protect cells
04:47:21 Set cell number formats
04:47:21 Set column widths
04:47:21 Set fonts
04:47:21 Set alignments
04:47:21 Set thin black border outline around column
04:47:21 Set thick brown border outline around Total
04:47:21 Set fills
04:47:21 Set style for header row using alternative method
04:47:21 Unprotect a cell
04:47:21 Add a hyperlink to an external website
04:47:21 Add a hyperlink to another cell on a different worksheet within the workbook
04:47:21 Add a drawing to the worksheet
04:47:21 Add a drawing to the worksheet
04:47:21 Add a drawing to the worksheet
04:47:21 Play around with inserting and removing rows and columns
04:47:21 Set header/footer
04:47:21 Set page orientation and size
04:47:21 Rename first worksheet
04:47:21 Create a second Worksheet object
04:47:21 Add some data
04:47:21 Set the worksheet tab color
04:47:21 Set alignments
04:47:21 Set column widths
04:47:21 Set fonts
04:47:21 Add a drawing to the worksheet
04:47:21 Set page orientation and size
04:47:21 Rename second worksheet
04:47:21 Write to Excel5 format

Fatal error: Uncaught Error: Call to undefined function imagepng() in /var/www/serami/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php:484 Stack trace: #0 /var/www/serami/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php(148): PHPExcel_Writer_Excel5->_buildWorkbookEscher() #1 /var/www/serami/html/vendor/phpoffice/phpexcel/Examples/14excel5.php(48): PHPExcel_Writer_Excel5->save('/var/www/serami...') #2 {main} thrown in /var/www/serami/html/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php on line 484