15:44:10 Create new PHPExcel object
15:44:10 Set document properties
15:44:10 Add some data
15:44:10 Add comments
15:44:10 Add rich-text string
15:44:10 Merge cells
15:44:10 Protect cells
15:44:10 Set cell number formats
15:44:10 Set column widths
15:44:10 Set fonts
15:44:10 Set alignments
15:44:10 Set thin black border outline around column
15:44:10 Set thick brown border outline around Total
15:44:10 Set fills
15:44:10 Set style for header row using alternative method
15:44:10 Unprotect a cell
15:44:10 Add a hyperlink to an external website
15:44:10 Add a hyperlink to another cell on a different worksheet within the workbook
15:44:10 Add a drawing to the worksheet
15:44:10 Add a drawing to the worksheet
15:44:10 Add a drawing to the worksheet
15:44:10 Play around with inserting and removing rows and columns
15:44:10 Set header/footer
15:44:10 Set page orientation and size
15:44:10 Rename first worksheet
15:44:10 Create a second Worksheet object
15:44:10 Add some data
15:44:10 Set the worksheet tab color
15:44:10 Set alignments
15:44:10 Set column widths
15:44:10 Set fonts
15:44:10 Add a drawing to the worksheet
15:44:10 Set page orientation and size
15:44:10 Rename second worksheet
15:44:10 Write to HTML format

Fatal error: Uncaught Error: Call to undefined function mb_strtolower() in /home/audiomeets/public_html/invoice.audiomeets.com/vendor/turbo124/phpexcel/Classes/PHPExcel/Style/NumberFormat.php:448 Stack trace: #0 [internal function]: PHPExcel_Style_NumberFormat::setLowercaseCallback(Array) #1 /home/audiomeets/public_html/invoice.audiomeets.com/vendor/turbo124/phpexcel/Classes/PHPExcel/Style/NumberFormat.php(464): preg_replace_callback('/(?:^|")([^"]*)...', Array, 'd-mmm-yy') #2 /home/audiomeets/public_html/invoice.audiomeets.com/vendor/turbo124/phpexcel/Classes/PHPExcel/Style/NumberFormat.php(647): PHPExcel_Style_NumberFormat::formatAsDate(46009, 'd-mmm-yy') #3 /home/audiomeets/public_html/invoice.audiomeets.com/vendor/turbo124/phpexcel/Classes/PHPExcel/Writer/HTML.php(1245): PHPExcel_Style_NumberFormat::toFormattedString(46009, 'd-mmm-yy', Array) #4 /home/audiomeets/public_html/invoice.audiomeets.com/vendor/turbo124/phpexcel/Classes/PHPExcel/Writer/HTML.php(476): PHPExcel_Writer_HTML->generateRow(Object(PHPExcel_Worksheet in /home/audiomeets/public_html/invoice.audiomeets.com/vendor/turbo124/phpexcel/Classes/PHPExcel/Style/NumberFormat.php on line 448