$_numberFormatIndex
$_numberFormatIndex : int
An index (2 bytes) to a FORMAT record (number format).
PHPExcel_Writer_Excel5_Xf
$_numberFormatIndex : int
An index (2 bytes) to a FORMAT record (number format).
$_text_justlast : int
1 bit, apparently not used.
$_fg_color : int
The cell's foreground color.
$_bg_color : int
The cell's background color.
$_bottom_color : int
Color of the bottom border of the cell.
$_top_color : int
Color of the top border of the cell.
$_left_color : int
Color of the left border of the cell.
$_right_color : int
Color of the right border of the cell.
$_isStyleXf : bool
Style XF or a cell XF ?
$_fontIndex : int
Index to the FONT record. Index 4 does not exist