Compare 2 XML files and generate the comparison excel sheet or CSV file

I guess this will be duplicate requirement, but i could not get an exact solution for my need. I want to compare 2 XML files which will share a common primary key value.

<?xml version="1.0" encoding="utf-8" ?> 
<Positions>
 <Position>
  <Tax ID=#001 Name="BRK" Sale="30" Gain=10/> 
  <Tax ID=#002 Name="NETFLEX" Sale="20" Gain=15/> 
  <Tax ID=#003 Name="STARG2" Sale="10" Gain=30/> 
  <Tax ID=#004 Name="JETLAB" Sale="0" Gain=0/> 
 </Position>
<Positions>

Second XML

<?xml version="1.0" encoding="utf-8" ?> 
<Positions>
 <Position>
  <Tax ID=#001 Name="BRK" Sale="30" Gain=10/> 
  <Tax ID=#002 Name="NETFLEX_Se2" Sale="30" Gain=0/> 
  <Tax ID=#003 Name="STARG2" Sale="30" Gain=0/> 
 </Position>
<Positions>

Result wanted (comparison of 2 in excel or csv file)

I had implemented a logic with for loop, please suggest a better method. Thanks