I've read XML::SemanticCompare POD before using it.
The output I get is like:

/quartz[namespace-uri() = 'http://www.opensymphony.com/quartz/JobSched
+ulingData']/job[namespace-uri() = 'http://www.opensymphony.com/quartz
+/JobSchedulingData']/job-detail[namespace-uri() = 'http://www.opensym
+phony.com/quartz/JobSchedulingData']/name[namespace-uri() = 'http://w
+ww.opensymphony.com/quartz/JobSchedulingData']/text()=Distribution Co
+ntent
/quartz[namespace-uri() = 'http://www.opensymphony.com/quartz/JobSched
+ulingData']/job[namespace-uri() = 'http://www.opensymphony.com/quartz
+/JobSchedulingData']/job-detail[namespace-uri() = 'http://www.opensym
+phony.com/quartz/JobSchedulingData']/description[namespace-uri() = 'h
+ttp://www.opensymphony.com/quartz/JobSchedulingData']/text()=Updating
+ the distribution content with one message
/quartz[namespace-uri() = 'http://www.opensymphony.com/quartz/JobSched
+ulingData']/job[namespace-uri() = 'http://www.opensymphony.com/quartz
+/JobSchedulingData']/job-detail[namespace-uri() = 'http://www.opensym
+phony.com/quartz/JobSchedulingData']/job-class[namespace-uri() = 'htt
+p://www.opensymphony.com/quartz/JobSchedulingData']/text()=com.cellti
+ck.tasks.distributor.CCtDistributionContentJob
/quartz[namespace-uri() = 'http://www.opensymphony.com/quartz/JobSched
+ulingData']/job[namespace-uri() = 'http://www.opensymphony.com/quartz
+/JobSchedulingData']/trigger[namespace-uri() = 'http://www.opensympho
+ny.com/quartz/JobSchedulingData']/simple[namespace-uri() = 'http://ww
+w.opensymphony.com/quartz/JobSchedulingData']/name[namespace-uri() = 
+'http://www.opensymphony.com/quartz/JobSchedulingData']/text()=Distri
+bution Content Trigger
/quartz[namespace-uri() = 'http://www.opensymphony.com/quartz/JobSched
+ulingData']/job[namespace-uri() = 'http://www.opensymphony.com/quartz
+/JobSchedulingData']/trigger[namespace-uri() = 'http://www.opensympho
+ny.com/quartz/JobSchedulingData']/simple[namespace-uri() = 'http://ww
+w.opensymphony.com/quartz/JobSchedulingData']/description[namespace-u
+ri() = 'http://www.opensymphony.com/quartz/JobSchedulingData']/text()
+=Triggers the broadcast task
[download]

I thought that may be there is a way to convert it to xml tags, since I need to display a difference in readable format on screen.

Regarding XML::SemanticDiff , I was sure that it's behavior is well known according http://ekawas.blogspot.com/2008_11_23_archive.html
If I append new elements to the end of file, it's working great.
But if some element is removed from begging of xml it displays a mess...

I'd like to know if there is another way to display difference between two xml files...

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