Laravel excel export -字符串格式的列显示为数字

use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\WithMapping;

class ExportController implements FromCollection, WithMapping
{
    public function map($row): array
    {
        return [
            '="' . $row->column1 . '"', // 在字符串前添加"="符号，将其转换为文本格式
            $row->column2,
            // 其他列...
        ];
    }

    public function collection()
    {
        return YourModel::all();
    }
}

use Maatwebsite\Excel\Facades\Excel;

public function export()
{
    return Excel::download(new ExportController, 'filename.xlsx');
}