code: function write_BrtFileVersion(data, o) {
  	if(!o) o = new_buf(127);
  	for(var i = 0; i != 4; ++i) o.write_shift(4, 0);
  	write_XLWideString("SheetJS", o);
  	write_XLWideString(XLSX.version, o);
  	write_XLWideString(XLSX.version, o);
  	write_XLWideString("7262", o);
  	o.length = o.l;
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
docs: /* [MS-XLSB] 2.4.649 BrtFileVersion