code: function parse_PtgArea(blob, length, opts) {
  	var type = (blob[blob.l++] & 0x60) >> 5;
  	var area = parse_RgceArea(blob, opts.biff >= 2 && opts.biff <= 5 ? 6 : 8, opts);
  	return [type, area];
  }
docs: /* [MS-XLS] 2.5.198.27 ; [MS-XLSB] 2.5.97.18