code: function parse_Setup(blob, length) {
  	var o = {};
  	if(length < 32) return o;
  	blob.l += 16;
  	o.header = parse_Xnum(blob, 8);
  	o.footer = parse_Xnum(blob, 8);
  	blob.l += 2;
  	return o;
  }
docs: /* [MS-XLS] 2.4.257