20:51:16 Create new PHPExcel object
20:51:16 Set document properties
20:51:16 Add some data
20:51:16 Add comments
20:51:16 Add rich-text string
20:51:16 Merge cells
20:51:16 Protect cells
20:51:16 Set cell number formats
20:51:16 Set column widths
20:51:16 Set fonts
20:51:16 Set alignments
20:51:16 Set thin black border outline around column
20:51:16 Set thick brown border outline around Total
20:51:16 Set fills
20:51:16 Set style for header row using alternative method
20:51:16 Unprotect a cell
20:51:16 Add a hyperlink to an external website
20:51:16 Add a hyperlink to another cell on a different worksheet within the workbook
20:51:16 Add a drawing to the worksheet
20:51:16 Add a drawing to the worksheet
20:51:16 Add a drawing to the worksheet
20:51:16 Play around with inserting and removing rows and columns
20:51:16 Set header/footer
20:51:16 Set page orientation and size
20:51:16 Rename first worksheet
20:51:16 Create a second Worksheet object
20:51:16 Add some data
20:51:16 Set the worksheet tab color
20:51:16 Set alignments
20:51:16 Set column widths
20:51:16 Set fonts
20:51:16 Add a drawing to the worksheet
20:51:16 Set page orientation and size
20:51:16 Rename second worksheet
20:51:16 Write to Excel2007 format
20:51:16 File written to 05featuredemo.xlsx
Call time to write Workbook was 0.0323 seconds
20:51:16 Current memory usage: 7.25 MB
20:51:16 Write to Excel5 format
Fatal error: Call to undefined function imagepng() in /var/www/inventariovirtual.com.co/public_html/private/www/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php on line 484