Reading this question in the context of having read Why SprintF? it occurs to me that you're talking about using sprintf to create a string that you then store in a scalar variable. ...as in my $variable = sprintf ..... (where '......' represents the rest of the parameter list). Ok, that's been covered in the previous question. So now on to the current question; can sprintf be used to store formatted data into in array so that as you loop you're able to iterate over this array of sprintf-formatted data? Yes. Here are a couple ways:

# Here's one using 'push':
my @array;
push @array, sprintf "%2d", $info;
push @array, sprintf "%3f", $moreinfo;

# Here's another way:
my @array;
$array[0] = sprintf "%2d", $info;
$array[1] = sprintf "%2s", $moreinfo;

# And now you can iterate over the array:
foreach my $item ( @array ) {
    print $item, "\n";
}
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