XML to XLS using java

Programmer Question

How can I map the metadata to data. For example I only want LastName and Email from the xml file into the xls file. How can I select LastName and email from xml file and convert that into two column XLS file columns being Lastname and email. Thank you

XML Document

    
        
        
        
        
        
        
        
    
    
        
            XXX
            xxxx
            xxx
            xxx
            xxx
            xx
            xx
        
        
            xxy
            xx
            xx
            xx
            xx
            xx
            xx
        
    

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