Perl Snippets Part 1 - XLS to CSV

For parsing Microsoft excel files (.xls) using Perl, we can make use of the module Spreadsheet::ParseExcel.
On my Ubuntu system this module is installed by:

safeer@penguinpower:~$sudo apt-get install libspreadsheet-parseexcel-perl

Following program will take an XLS file as input and print the csv format to standard out.

#!/usr/bin/perl -w

use strict;
use Spreadsheet::ParseExcel;

my $parser = Spreadsheet::ParseExcel->new();
if ( !defined $ARGV[0] ) { die "Please provide an excel file"; }
my $workbook = $parser->parse($ARGV[0]);
if ( !defined $workbook ) { die $parser->error(), ".\n"; }

for my $worksheet ( $workbook->worksheets() ) {

my ( $row_min, $row_max ) = $worksheet->row_range();
my ( $col_min, $col_max ) = $worksheet->col_range();

for my $row ( $row_min .. $row_max ) {
for my $col ( $col_min .. $col_max ) {

my $cell = $worksheet->get_cell( $row, $col );
if ( defined $cell ) { print $cell->value(); }
if ( $col < $col_max ) { print ","; }        
}   
print "\n";
}
}