you can use notepad++ version 7.5.3
https://notepad-plus-plus.org/download/v7.5.3.html
and the compare plugin v 2.0.0 from here
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Tag: notepad++
You must have notepad++ installed, also the XML Tools plugin,
and then from menu of XML Tools plugin have selected “Pretty print (XML only – with line breaks)” ,
this will format any piece of XML with all the proper line spacing.
then it should be like this
source here