PHPExcel_Style_Border::BORDER_NONE = 'none'
PHPExcel_Style_Border::BORDER_DASHDOT = 'dashDot'
PHPExcel_Style_Border::BORDER_DASHDOTDOT = 'dashDotDot'
PHPExcel_Style_Border::BORDER_DASHED = 'dashed'
PHPExcel_Style_Border::BORDER_DOTTED = 'dotted'
PHPExcel_Style_Border::BORDER_DOUBLE = 'double'
PHPExcel_Style_Border::BORDER_HAIR = 'hair'
PHPExcel_Style_Border::BORDER_MEDIUM = 'medium'
PHPExcel_Style_Border::BORDER_MEDIUMDASHDOT = 'mediumDashDot'
PHPExcel_Style_Border::BORDER_MEDIUMDASHDOTDOT = 'mediumDashDotDot'
PHPExcel_Style_Border::BORDER_MEDIUMDASHED = 'mediumDashed'
PHPExcel_Style_Border::BORDER_SLANTDASHDOT = 'slantDashDot'
PHPExcel_Style_Border::BORDER_THICK = 'thick'
PHPExcel_Style_Border::BORDER_THIN = 'thin'