Let me share my code , i use laravel 11 and laravel excel for export record
this my export code

class PengajuanKomponenItemExport implements FromQuery , WithMapping , ShouldQueue , WithHeadings , ShouldAutoSize , WithEvents
{
use Exportable;

public function query()
{
    return PengajuanKomponenItem::query();
}
public function map($PengajuanKomponenItem) : array
{
    return [
        $PengajuanKomponenItem->bahanKomponen->nama,
        $PengajuanKomponenItem->jumlah,
        $PengajuanKomponenItem->bahanKomponen->satuan,
        Date::dateTimeToExcel($PengajuanKomponenItem->created_at),
        $PengajuanKomponenItem->pengajuanBahanKomponen->status,
        $PengajuanKomponenItem->bahanKomponen->harga,
        $PengajuanKomponenItem->jumlah * $PengajuanKomponenItem->bahanKomponen->harga,
    ];
}

}

and this class PengajuanKomponenItem

class PengajuanKomponenItem extends Model
{
use HasFactory;

protected $fillable = [
    'pengajuan_bahan_komponen_id',
    'bahan_komponen_id',
    'jumlah',
];

public function pengajuanBahanKomponen()
{
    return $this->belongsTo(PengajuanKomponen::class);
}

}

this class PengajuanKomponen

class PengajuanKomponen extends ApprovableModel implements HasMedia
{
use HasFactory, InteractsWithMedia;

protected $fillable = [
    // 'approved',
    'status',
    'keterangan'
];

public static function status(): array
{
    return [
        'Menunggu persetujuan' => 'Menunggu persetujuan',
        'Pembelian' => 'Pembelian',
        'Selesai' => 'Selesai',
    ];
}

}

and i sure in my table have a records
enter image description here

i tried to get field status from PengajuanKomponenItem but when has access from any table that have a relation (pengajuanBahanKomponen) “a property have null value”