11:31:19 Create new PHPExcel object
11:31:19 Set document properties
11:31:19 Add some data
11:31:19 Add comments
11:31:19 Add rich-text string
11:31:19 Merge cells
11:31:19 Protect cells
11:31:19 Set cell number formats
11:31:19 Set column widths
11:31:19 Set fonts
11:31:19 Set alignments
11:31:19 Set thin black border outline around column
11:31:19 Set thick brown border outline around Total
11:31:19 Set fills
11:31:19 Set style for header row using alternative method
11:31:19 Unprotect a cell
11:31:19 Add a hyperlink to an external website
11:31:19 Add a hyperlink to another cell on a different worksheet within the workbook
11:31:19 Add a drawing to the worksheet
11:31:19 Add a drawing to the worksheet
11:31:19 Add a drawing to the worksheet
11:31:19 Play around with inserting and removing rows and columns
11:31:19 Set header/footer
11:31:19 Set page orientation and size
11:31:19 Rename first worksheet
11:31:19 Create a second Worksheet object
11:31:19 Add some data
11:31:19 Set the worksheet tab color
11:31:19 Set alignments
11:31:19 Set column widths
11:31:19 Set fonts
11:31:19 Add a drawing to the worksheet
11:31:19 Set page orientation and size
11:31:19 Rename second worksheet
11:31:19 Write to Excel2007 format
11:31:19 File written to 05featuredemo.xlsx
Call time to write Workbook was 0.0230 seconds
11:31:19 Current memory usage: 4.5 MB
11:31:19 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