sub addMyFile{
    my $file = shift;  #this is the filename of the file i am adding
    my $fullpath = "$edmdir\\$file";  #full filename with path
    my $addpres = $ppt->Presentations->Open( $fullpath ) or die "Can't open PowerPoint file '$fullpath': $!\n";
 
    my @slides;
    my $j = 1;
    my $slide;
  
    while ($addpres->Slides($j)){$slides[$j] = $addpres->Slides($j);$j++};  

    shift(@slides);  #because I start at 1, i need to drop off the first element.
    my $m;  
    my $k = 0;
    foreach (@slides){ 
        $m = $k+1;   #because slide index starts at 1, not 0;
        $addpres->Slides($m)->Copy;   #copy newly opened file slide...
        $pres->Slides->Paste($slideIndex);  #past it into current presentation.
        $slideIndex++; 
        $k++;
     }
}