## early on..
$filepath = '/dir/of/file/';

## in your foreach/while for your file
push(@files,$field6);

## later on...
$d = join("','", @files);
$d = "'" . $d . "'";

##</code><code>##

$file1 = '/dir/of/file/filename1.txt';
$file2 = '/dir/of/file/filename2.txt';

## then send both variables to the module:
$file1,$file2