in reply to non-greedy piecewise matching
You have to use '.+?' instead of '.+' to make non-greediness. Take a look at perlre.
As you said, if .xml is present after each records, then we can also use substitution or split function.
$file =~ s/(\.xml)/$1\n/g;
An electronic device
Being the designated driver
Spending time with a celebrity
I never won anything
I never play the lottery
I haven't checked my spam folder recently
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