12:13:06 Create new PHPExcel object<br />12:13:06 Set document properties<br />12:13:06 Add some data<br />12:13:06 Add comments<br />12:13:06 Add rich-text string<br />12:13:06 Merge cells<br />12:13:06 Protect cells<br />12:13:06 Set cell number formats<br />12:13:06 Set column widths<br />12:13:06 Set fonts<br />12:13:06 Set alignments<br />12:13:06 Set thin black border outline around column<br />12:13:06 Set thick brown border outline around Total<br />12:13:06 Set fills<br />12:13:06 Set style for header row using alternative method<br />12:13:06 Unprotect a cell<br />12:13:06 Add a hyperlink to an external website<br />12:13:06 Add a hyperlink to another cell on a different worksheet within the workbook<br />12:13:06 Add a drawing to the worksheet<br />12:13:06 Add a drawing to the worksheet<br />12:13:06 Add a drawing to the worksheet<br />12:13:06 Play around with inserting and removing rows and columns<br />12:13:06 Set header/footer<br />12:13:06 Set page orientation and size<br />12:13:06 Rename first worksheet<br />12:13:06 Create a second Worksheet object<br />12:13:06 Add some data<br />12:13:06 Set the worksheet tab color<br />12:13:06 Set alignments<br />12:13:06 Set column widths<br />12:13:06 Set fonts<br />12:13:06 Add a drawing to the worksheet<br />12:13:06 Set page orientation and size<br />12:13:06 Rename second worksheet<br />12:13:06 Write to Excel2007 format<br />12:13:06 File written to 05featuredemo.xlsx<br />Call time to write Workbook was 0.0185 seconds<br />12:13:06 Current memory usage: 2 MB<br />12:13:06 Write to Excel5 format<br /><br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function imagepng() in /var/www/html/TECORSA/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php:484
Stack trace:
#0 /var/www/html/TECORSA/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php(148): PHPExcel_Writer_Excel5-&gt;_buildWorkbookEscher()
#1 /var/www/html/TECORSA/vendor/phpoffice/phpexcel/Examples/05featuredemo.php(63): PHPExcel_Writer_Excel5-&gt;save('/var/www/html/T...')
#2 {main}
  thrown in <b>/var/www/html/TECORSA/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php</b> on line <b>484</b><br />