docs: function parse_XLUnicodeStringNoCch(blob, cch, opts) {
  	var retval;
  	if(opts) {
  		if(opts.biff >= 2 && opts.biff <= 5) return blob.read_shift(cch, 'sbcs-cont');
  		if(opts.biff >= 12) return blob.read_shift(cch, 'dbcs-cont');
  	}
  	var fHighByte = blob.read_shift(1);
  	if(fHighByte===0) { retval = blob.read_shift(cch, 'sbcs-cont'); }
  	else { retval = blob.read_shift(cch, 'dbcs-cont'); }
  	return retval;
  }