Assuming all your data is in @array, then surely a regexp, along the lines of: 
for ($i=0; $i<=$#array; $i++) {
    $array[$i] =~ s/\w{2}(\d{4})\w+/$1/;
}

[download]
Would work?

In reply to Re: Splitting a word by kilinrax
in thread Splitting a word by Anonymous Monk

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