for my $row ( 0 .. 0 ) { 
 @value = map {
        my $cell = $worksheet->get_cell($row, $_);
        $cell ? $cell->value() : '';
    } @required_col;


##</code><code>##

#!/software/bin/perl

BEGIN {
    unshift @INC, '/nfs/users/nfs_d/dmb/perl/lib' ;
    unshift @INC, '/nfs/users/nfs_d/dmb/perl/lib2' ;
    unshift @INC, '/nfs/users/nfs_a/aj6/CGP/perl_stuffs/lib/lib/site_perl/5.8.8/';
}

use File::Basename ;
use Algorithm::Permute ;
use Spreadsheet::ParseExcel;
use Getopt::Long;
use Text::CSV;

use strict;
use warnings ;

my @required_col = (0,1,2,13..47);

GetOptions(
    "if=s" => \my $excel_file,
    "od=s" => \my $outputdir,
);

my $parser = Spreadsheet::ParseExcel->new();

my $workbook = $parser->Parse($excel_file);
if ( !defined $workbook ) {
    die $parser->error(), ".\n";
}

my $newfile = $excel_file . ".csv";
my $csv = Text::CSV->new ( { eol => "\n" } )
    or die "Cannot use CSV: ".Text::CSV->error_diag ();
open my $fh, '>', $newfile or die "Can't open $newfile: $!";

my @worksheets = $workbook->worksheets();
warn "More than 1 worksheet found\n" if @worksheets > 1;

# Only work with first page.
my $worksheet = $worksheets[0];
my @hea = $worksheet->{Header};
print @hea;
my ( $row_min, $row_max ) = $worksheet->row_range();
my @value;


##to get the headers of the excel file;
for my $row ( 0 .. 0 ) { 
 @value = map {
        my $cell = $worksheet->get_cell($row, $_);
        $cell ? $cell->value() : '';
    } @required_col;
    
}
# Skip header row
my @data;
for my $row ( 1 .. $row_max ) {
    @data = map {
        my $cell = $worksheet->get_cell($row, $_);
        $cell ? $cell->value() : '';
    } @required_col;
   
  &changeformat(\@value,\@data);   
  }

sub changeformat{
 
my ($header,$data) = @_;
my(%hash1,%hash2);
 my $plex1 = shift @$header; #since passed through the loop again and again, shifts the first element every time it passes through the loop
 $hash2{$plex1} = \@$header;
 my $plex = shift @$data;
 
 my $sangerid = shift @$data;
 my $supplierid = shift @$data;
 $hash1{$supplierid} = \@$data;
 foreach my $key (keys %hash1){
   foreach my $k(keys %hash2){
    for(my$i = 0;$i<=scalar(@$data);$i++){
   
   #   print "$key,$hash1{$key}[$i], $plex,$hash2{$k}[$i]\n" if ($hash2{$k}[$i] and $key);
    }
  }
 }

}