I played with your XML in XML::XSH2. It has a shell/REPL, so it's easy to discover the correct XPath expressions there by trial and error. It's a wrapper around XML::LibXML where you can use the same XPath expressions if speed is your concern. 
open file.xml ;
for /DatatoParse/elt/Nest1/elt/Nest2/elt {
    my $top = ancestor::elt[last()] ;
    echo :s $top/d1 , $top/d2 , (d5/X) , (d5/Y) , (d6/X) , (d6/Y) , (N
+est3/Nest4/d7/d9/d10/d11) ;
}

[download]

Output: 

TV show 1,Heroes,-2,-3,5,8,yipppeee
TV show 1,Heroes,-2,-3,5,8,yipppeee
TV show 1,Heroes,-2,-3,5,8,yipppeee
TV show 1,Heroes,-2,-3,5,8,yipppeee
TV show 2,Prison Break,-2,-3,5,8,yipppeee
TV show 2,Prison Break,-2,-3,5,8,yipppeee
TV show 2,Prison Break,-2,-3,5,8,yipppeee
TV show 2,Prison Break,-2,-3,5,8,yipppeee
TV show 4,Alias,-2,-3,5,8,yipppeee
TV show 4,Alias,-2,-3,5,8,yipppeee
TV show 4,Alias,-2,-3,5,8,yipppeee
TV show 4,Alias,-2,-3,5,8,yipppeee

[download]

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

[download]

In reply to Re: Parsing a highly nested XML file correctly and efficiently by choroba
in thread Parsing a highly nested XML file correctly and efficiently by Ppeoc

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