(PECL xlswriter >= 1.2.1)
Crea un objeto con formato de celda
Vtiful\Kernel\Format::FORMAT_ALIGN_LEFT
Vtiful\Kernel\Format::FORMAT_ALIGN_CENTER
Vtiful\Kernel\Format::FORMAT_ALIGN_RIGHT
Vtiful\Kernel\Format::FORMAT_ALIGN_FILL
Vtiful\Kernel\Format::FORMAT_ALIGN_JUSTIFY
Vtiful\Kernel\Format::FORMAT_ALIGN_CENTER_ACROSS
Vtiful\Kernel\Format::FORMAT_ALIGN_DISTRIBUTED
Vtiful\Kernel\Format::FORMAT_ALIGN_VERTICAL_TOP
Vtiful\Kernel\Format::FORMAT_ALIGN_VERTICAL_BOTTOM
Vtiful\Kernel\Format::FORMAT_ALIGN_VERTICAL_CENTER
Vtiful\Kernel\Format::FORMAT_ALIGN_VERTICAL_JUSTIFY
Vtiful\Kernel\Format::FORMAT_ALIGN_VERTICAL_DISTRIBUTED
Vtiful\Kernel\Format::UNDERLINE_SINGLE
Vtiful\Kernel\Format::UNDERLINE_DOUBLE
Vtiful\Kernel\Format::UNDERLINE_SINGLE_ACCOUNTING
Vtiful\Kernel\Format::UNDERLINE_DOUBLE_ACCOUNTING