You just need to use Text::CSV to output the new data to a csv file: 
#!/software/bin/perl

BEGIN {
    unshift @INC, '/nfs/users/nfs_d/dmb/perl/lib' ;
    unshift @INC, '/nfs/users/nfs_d/dmb/perl/lib2' ;
}

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

use strict;
use warnings ;

my @required_col = (0,2,13..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 ( $row_min, $row_max ) = $worksheet->row_range();

# Skip header row
for my $row ( 1 .. $row_max ) {
    my @data = map {
        my $cell = $worksheet->get_cell($row, $_);
        $cell ? $cell->value() : '';
    } @required_col;
    
    print "@data\n";
    
    $csv->print($fh, \@data);
}

[download]

In reply to Re: Spreadsheet::ParseExcel assigning the column by wind
in thread Spreadsheet::ParseExcel assigning the column by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.