Adding border style to PHP_XLSX causes Excel load to fail

Created by: pdubinsky

If I add a style like this:

$styles1 = array( array(),['border'=>'left,top,bottom'],['border'=>'top,bottom'],['border'=>'top,bottom,right']); $writer->writeSheetRow('Iota-5', $row, $styles1);

MS Excel refuses to load the xlsx file while LibreOffice opens the xlsx file correctly. If I remove the $style1 from the code like this:

$writer->writeSheetRow('Iota-5', $row);

Both MS Excel and LibrOffice load correctly. The rows are 3 cells wide.