How does Perl handle the content of an Excel file?

Perl has the ability to handle Excel content using the Spreadsheet::ParseExcel module. This module can parse Excel files and extract data from them. Below is a simple example:

use strict;
use warnings;
use Spreadsheet::ParseExcel;

# 打开Excel文件
my $parser   = Spreadsheet::ParseExcel->new();
my $workbook = $parser->parse('example.xls');

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

# 获取第一个工作表
my $worksheet = $workbook->worksheet(0);

# 获取行数和列数
my ( $row_min, $row_max ) = $worksheet->row_range();
my ( $col_min, $col_max ) = $worksheet->col_range();

# 遍历每一行
for my $row ( $row_min .. $row_max ) {
    # 遍历每一列
    for my $col ( $col_min .. $col_max ) {
        # 获取单元格对象
        my $cell = $worksheet->get_cell( $row, $col );
        
        # 获取单元格的值
        if ($cell) {
            my $value = $cell->value();
            print "($row, $col): $value\n";
        }
    }
}

This example utilizes the Spreadsheet::ParseExcel module to parse an Excel file, extract the number of rows and columns in the first worksheet, and then go through each cell using nested loops to retrieve and print its value. You can customize the data processing as needed.