13:25:39 Create new PHPExcel object
13:25:39 Set document properties
13:25:39 Add some data
Notice: Trying to access array offset on value of type float in /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php on line 82
13:25:39 Add comments
13:25:39 Add rich-text string
13:25:39 Merge cells
13:25:39 Protect cells
13:25:39 Set cell number formats
13:25:39 Set column widths
13:25:39 Set fonts
13:25:39 Set alignments
13:25:39 Set thin black border outline around column
13:25:39 Set thick brown border outline around Total
13:25:39 Set fills
13:25:39 Set style for header row using alternative method
13:25:39 Unprotect a cell
13:25:39 Add a hyperlink to an external website
13:25:39 Add a hyperlink to another cell on a different worksheet within the workbook
13:25:39 Add a drawing to the worksheet
13:25:39 Add a drawing to the worksheet
13:25:39 Add a drawing to the worksheet
13:25:39 Play around with inserting and removing rows and columns
13:25:39 Set header/footer
13:25:39 Set page orientation and size
13:25:39 Rename first worksheet
13:25:39 Create a second Worksheet object
13:25:39 Add some data
13:25:39 Set the worksheet tab color
13:25:39 Set alignments
13:25:39 Set column widths
13:25:39 Set fonts
13:25:39 Add a drawing to the worksheet
13:25:39 Set page orientation and size
13:25:39 Rename second worksheet
13:25:39 Write to CSV format
Fatal error: Uncaught Error: Call to undefined function mb_strtolower() in /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php:448
Stack trace:
#0 [internal function]: PHPExcel_Style_NumberFormat::setLowercaseCallback()
#1 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php(464): preg_replace_callback()
#2 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php(647): PHPExcel_Style_NumberFormat::formatAsDate()
#3 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Worksheet.php(2502): PHPExcel_Style_NumberFormat::toFormattedString()
#4 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/CSV.php(142): PHPExcel_Worksheet->rangeToArray()
#5 /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Examples in /var/www/clients/conquer/conquer-communitybox/MXFiscal/vendor/phpoffice/phpexcel/Classes/PHPExcel/Style/NumberFormat.php on line 448