#!/usr/bin/perl

use Spreadsheet::Read qw(ReadData);
my $inputFile = 'foo.xlsx';

use Text::CSV;
my $outputFile = 'bar.csv';
my $csv = Text::CSV->new ( { binary => 1, eol => "\n" } )
                or die "Cannot use CSV: ".Text::CSV->error_diag ();

my @writeRows;

my $book = ReadData ($inputFile);
my @readRows = Spreadsheet::Read::rows($book->[1]);
foreach my $i (1 .. scalar @readRows)
{
  my @thisRow;

  my ($id, $last, $first, $pref) = @{$readRows[$i-1]};

  if ($pref) { push @thisRow, $pref; } else { push @thisRow, $first; }
  push @thisRow, $last, "Static", "Text";
  push @writeRows, [@thisRow];
}

open $fh, ">:encoding(utf-8)", $outputFile
	or die "$outputFile: $!";
$csv->print ($fh, $_) for @writeRows;
close $fh or die "$outputFile: $!";
   
exit;