reginaldojunior / winners

	 * @param integer $col	Zero indexed column

	 * @param mixed   $xfIndex The XF format index

	 */

	function _writeBlank($row, $col, $xfIndex)

	{

		$record	= 0x0201;				 // Record identifier

		$length	= 0x0006;				 // Number of bytes to follow

		$header	= pack("vv",  $record, $length);

		$data	  = pack("vvv", $row, $col, $xfIndex);

		$this->_append($header . $data);

		return 0;

	}

	/**

	 * Write a boolean or an error type to the specified row and column (zero indexed)

	 * @param boolean $isError Error or Boolean?

	 * @param int $xfIndex

	 */

	private function _writeBoolErr($row, $col, $value, $isError, $xfIndex)

	{

		$record = 0x0205;

		$length = 8;

		$header	= pack("vv",  $record, $length);

		$data	  = pack("vvvCC", $row, $col, $xfIndex, $value, $isError);

		$this->_append($header . $data);

		return 0;

	}

	/**

	 * Write a formula to the specified row and column (zero indexed).