Here is the code run through Perl::Tidy. It's the example from Spreadsheet::ParseExcel with a few extra statements at the beginning.

#!/usr/bin/perl -w

use strict;

use base 'Spreadsheet::ParseExcel::Worksheet';
use Spreadsheet::Worksheet;
use Spreadsheet::Workbook;

use Spreadsheet::ParseExcel;

my $parser   = Spreadsheet::ParseExcel->new();
my $workbook = $parser->parse('Book1.xls');

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 );
            next unless $cell;

            print "Row, Col = ($row, $col)\n";
            print "Value = ",       $cell->value(),       "\n";
            print "Unformatted = ", $cell->unformatted(), "\n";
            print "\n";
        }
    }
}
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The following lines at the beginning of your script should just be removed:

use base 'Spreadsheet::ParseExcel::Worksheet';
use Spreadsheet::Worksheet;
use Spreadsheet::Workbook;
[download]

use Modern::Perl;
use Spreadsheet::ParseExcel::Simple;
my $workbook = Spreadsheet::ParseExcel::Simple->read('Book1.xls') or d
+ie $!;
for my $worksheet ( $workbook->sheets ) {
    while ( $worksheet->has_data ) {
        say "Value = $_" for $worksheet->next_row;
    }
}
[download]