removed double encoded html tags

[capile]

The former line 1185: $cellData = htmlspecialchars($cellData); is double-encoding HTML tags when conditional colors are passed to the NumberFormat (like "0;[Red] 0"). The PHPExcel_Style_NumberFormat::formatColor callback, present in all occasions already encodes HTML content within the cell value (line 1408).

Also, there's a minor typo in the PHPExcel_Style_NumberFormat::ToFormattedString (the method uses a lowercase t).

[capile]

Worth mentioning, this is a great project — I'd be glad to help if possible.

Thanks!

[capile]

Still focusing the HTML Writer support, the styles generated are incompatible with the HTML structure used: at the style element you set column widths to col.colX while the table structure used td with the class as .columnX

Another issue: setting the td width has no apparently effect, leaving the HTML cells plainly different than the Excel or PDF versions — but if you switch it to min-width then you have a fully compatible layout. Both these updates are at the commit https://github.com/capile/PHPExcel/commit/4673d188fd0fdc9ab9ce9f75ddcde9f962528a34 available at this pull request.

Cheers,

Guilherme Capilé