my $tree = 
    {
        table => {}
    
    };
$tree->{table} = 
        $xml->XMLin($fileName, 
            ForceArray => ['map'], KeyAttr => []
        )
    ->{table};

##</code><code>##

my $tree = $xml->XMLin($fileName, 
   ForceArray => [qw( map )],
   KeyAttr    => {},
   KeepRoot   => 1,
);