code: function parse_PtgNameX(blob, length, opts) {
  	if(opts.biff == 5) return parse_PtgNameX_BIFF5(blob, length, opts);
  	var type = (blob.read_shift(1) >>> 5) & 0x03;
  	var ixti = blob.read_shift(2); // XtiIndex
  	var nameindex = blob.read_shift(4);
  	return [type, ixti, nameindex];
  }
docs: /* [MS-XLS] 2.5.198.77 ; [MS-XLSB] 2.5.97.61