diff --git a/frontend/components/inventory/inventory-export-modal.vue b/frontend/components/inventory/inventory-export-modal.vue
new file mode 100644
index 0000000..983e2db
--- /dev/null
+++ b/frontend/components/inventory/inventory-export-modal.vue
@@ -0,0 +1,96 @@
+<template>
+    <UiModal v-model="open" title="Exporter l'inventaire bovin" max-width="max-w-2xl">
+        <p class="mb-5 text-sm text-slate-600">
+            Aucun filtre coché&nbsp;: export complet (tous les bovins actifs).
+        </p>
+
+        <div class="mb-5">
+            <h3 class="mb-3 text-sm font-semibold uppercase tracking-wide text-slate-600">
+                Tranches d'âge
+            </h3>
+            <div class="flex flex-col gap-2">
+                <label
+                    v-for="bucket in ageBuckets"
+                    :key="bucket.value"
+                    class="flex items-center gap-3 cursor-pointer text-primary-700"
+                >
+                    <input
+                        v-model="filters.ageRanges"
+                        type="checkbox"
+                        :value="bucket.value"
+                        class="h-4 w-4 cursor-pointer accent-primary-500"
+                    />
+                    <span :class="['inline-block rounded px-2 py-0.5 text-xs font-semibold text-white', bucket.colorClass]">
+                        {{ bucket.badge }}
+                    </span>
+                    <span>{{ bucket.label }}</span>
+                </label>
+            </div>
+        </div>
+
+        <template #footer>
+            <div class="flex justify-center">
+                <button
+                    type="button"
+                    :disabled="loading"
+                    class="inline-flex h-[50px] items-center justify-center gap-2 rounded bg-primary-500 px-6 text-base text-white uppercase hover:opacity-80 disabled:cursor-not-allowed disabled:opacity-60"
+                    @click="onSubmit"
+                >
+                    <Icon
+                        v-if="loading"
+                        name="mdi:loading"
+                        size="20"
+                        class="animate-spin"
+                    />
+                    <Icon v-else name="mdi:file-excel-outline" size="20" />
+                    Exporter
+                </button>
+            </div>
+        </template>
+    </UiModal>
+</template>
+
+<script setup lang="ts">
+import { computed, reactive, watch } from 'vue'
+
+export interface InventoryExportFilters {
+    ageRanges: string[]
+}
+
+const props = withDefaults(defineProps<{
+    modelValue: boolean
+    loading?: boolean
+}>(), {
+    loading: false
+})
+
+const emit = defineEmits<{
+    (e: 'update:modelValue', value: boolean): void
+    (e: 'submit', filters: InventoryExportFilters): void
+}>()
+
+const open = computed({
+    get: () => props.modelValue,
+    set: (value: boolean) => emit('update:modelValue', value)
+})
+
+const ageBuckets = [
+    { value: 'over24', label: '≥ 24 mois', badge: '24+', colorClass: 'bg-red-500' },
+    { value: 'between22And24', label: '22 à 24 mois', badge: '22-24', colorClass: 'bg-orange-500' },
+    { value: 'between20And22', label: '20 à 22 mois', badge: '20-22', colorClass: 'bg-yellow-500' }
+]
+
+const filters = reactive<InventoryExportFilters>({
+    ageRanges: []
+})
+
+watch(open, (isOpen) => {
+    if (isOpen) {
+        filters.ageRanges = []
+    }
+})
+
+const onSubmit = () => {
+    emit('submit', { ageRanges: [...filters.ageRanges] })
+}
+</script>
diff --git a/frontend/components/ui/UiModal.vue b/frontend/components/ui/UiModal.vue
new file mode 100644
index 0000000..e3f5849
--- /dev/null
+++ b/frontend/components/ui/UiModal.vue
@@ -0,0 +1,96 @@
+<template>
+    <Teleport to="body">
+        <Transition
+            enter-active-class="transition duration-150 ease-out"
+            enter-from-class="opacity-0"
+            enter-to-class="opacity-100"
+            leave-active-class="transition duration-100 ease-in"
+            leave-from-class="opacity-100"
+            leave-to-class="opacity-0"
+        >
+            <div
+                v-if="modelValue"
+                class="fixed inset-0 z-40 flex items-center justify-center bg-black/50 px-4"
+                role="dialog"
+                aria-modal="true"
+                @mousedown.self="closeOnBackdrop"
+            >
+                <div
+                    class="w-full rounded-md bg-white shadow-2xl"
+                    :class="maxWidth"
+                    @mousedown.stop
+                >
+                    <div class="flex items-center justify-between border-b border-slate-200 px-6 py-4">
+                        <h2 class="text-xl font-bold uppercase text-primary-500">{{ title }}</h2>
+                        <button
+                            type="button"
+                            class="text-slate-500 hover:text-primary-500 flex items-center"
+                            aria-label="Fermer"
+                            @click="close"
+                        >
+                            <Icon name="mdi:close" size="24" />
+                        </button>
+                    </div>
+
+                    <div class="px-6 py-5">
+                        <slot />
+                    </div>
+
+                    <div
+                        v-if="$slots.footer"
+                        class="border-t border-slate-200 px-6 py-4"
+                    >
+                        <slot name="footer" :close="close" />
+                    </div>
+                </div>
+            </div>
+        </Transition>
+    </Teleport>
+</template>
+
+<script setup lang="ts">
+import { onMounted, onBeforeUnmount, watch } from 'vue'
+
+const props = withDefaults(defineProps<{
+    modelValue: boolean
+    title?: string
+    closeOnBackdropClick?: boolean
+    maxWidth?: string
+}>(), {
+    title: '',
+    closeOnBackdropClick: true,
+    maxWidth: 'max-w-lg'
+})
+
+const emit = defineEmits<{
+    (e: 'update:modelValue', value: boolean): void
+}>()
+
+const close = () => emit('update:modelValue', false)
+
+const closeOnBackdrop = () => {
+    if (props.closeOnBackdropClick) close()
+}
+
+const onKeydown = (event: KeyboardEvent) => {
+    if (event.key === 'Escape' && props.modelValue) close()
+}
+
+watch(() => props.modelValue, (open) => {
+    if (typeof document === 'undefined') return
+    document.body.style.overflow = open ? 'hidden' : ''
+})
+
+onMounted(() => {
+    if (typeof document !== 'undefined') {
+        document.addEventListener('keydown', onKeydown)
+    }
+})
+
+onBeforeUnmount(() => {
+    if (typeof document !== 'undefined') {
+        document.removeEventListener('keydown', onKeydown)
+        document.body.style.overflow = ''
+    }
+})
+</script>
diff --git a/frontend/pages/inventory.vue b/frontend/pages/inventory.vue
index d4d4cf9..7f3fabe 100644
--- a/frontend/pages/inventory.vue
+++ b/frontend/pages/inventory.vue
@@ -17,7 +17,7 @@
                     class="bg-primary-500 p-1 rounded-md flex items-center cursor-pointer hover:opacity-80"
                     :class="exporting ? 'cursor-not-allowed opacity-60' : ''"
                     title="Exporter en Excel"
-                    @click="exportInventory"
+                    @click="showExportModal = true"
                 >
                     <Icon name="mdi:file-excel-outline" size="32" class="text-white" />
                 </div>
@@ -136,12 +136,19 @@
                 </template>
             </UiDataTable>
         </div>
+
+        <InventoryExportModal
+            v-model="showExportModal"
+            :loading="exporting"
+            @submit="exportInventory"
+        />
     </div>
 </template>
 
 
 <script setup lang="ts">
 import type { BovineData } from '~/services/dto/bovine-data'
+import type { InventoryExportFilters } from '~/components/inventory/inventory-export-modal.vue'
 import { useAuthStore } from '~/stores/auth'
 import { useDataTableServerState } from '~/composables/useDataTableServerState'
 import { useBovineColumns } from '~/composables/useBovineColumns'
@@ -183,12 +190,17 @@ const loadStats = async () => {
 
 const syncing = ref(false)
 const exporting = ref(false)
+const showExportModal = ref(false)
 
-const exportInventory = async () => {
+const exportInventory = async (filters: InventoryExportFilters) => {
     if (exporting.value) return
     exporting.value = true
     try {
-        const blob = await api.getBlob('bovines/inventory-export')
+        const query: Record<string, unknown> = {}
+        if (filters.ageRanges.length > 0) {
+            query.ageRanges = filters.ageRanges.join(',')
+        }
+        const blob = await api.getBlob('bovines/inventory-export', query)
         const filename = `inventaire_bovins_${new Date().toISOString().slice(0, 10)}.xlsx`
         const url = URL.createObjectURL(blob)
         const a = document.createElement('a')
@@ -199,6 +211,7 @@ const exportInventory = async () => {
         a.click()
         a.remove()
         setTimeout(() => URL.revokeObjectURL(url), 60_000)
+        showExportModal.value = false
     } catch {
         // toast déjà géré par useApi onResponseError
     } finally {
diff --git a/src/Repository/BovineRepository.php b/src/Repository/BovineRepository.php
index d12f3b2..7864556 100644
--- a/src/Repository/BovineRepository.php
+++ b/src/Repository/BovineRepository.php
@@ -13,11 +13,59 @@ use Doctrine\Persistence\ManagerRegistry;
  */
 final class BovineRepository extends ServiceEntityRepository
 {
+    public const AGE_RANGE_OVER_24 = 'over24';
+
+    public const AGE_RANGE_BETWEEN_22_AND_24 = 'between22And24';
+
+    public const AGE_RANGE_BETWEEN_20_AND_22 = 'between20And22';
+
     public function __construct(ManagerRegistry $registry)
     {
         parent::__construct($registry, Bovine::class);
     }
 
+    /**
+     * Liste des bovins actifs pour l'export inventaire.
+     *
+     * @param null|list<string> $ageRanges Si null/vide → tous. Sinon filtre OR sur les tranches d'âge demandées.
+     *
+     * @return list<Bovine>
+     */
+    public function findActiveForInventoryExport(?array $ageRanges = null): array
+    {
+        $qb = $this->createQueryBuilder('b')
+            ->where('b.exitedAt IS NULL')
+            ->orderBy('b.birthDate', 'ASC')
+        ;
+
+        if (null !== $ageRanges && [] !== $ageRanges) {
+            $orX = $qb->expr()->orX();
+            foreach ($ageRanges as $idx => $range) {
+                switch ($range) {
+                    case self::AGE_RANGE_OVER_24:
+                        $orX->add('b.ageMonths >= 24');
+
+                        break;
+
+                    case self::AGE_RANGE_BETWEEN_22_AND_24:
+                        $orX->add($qb->expr()->andX('b.ageMonths >= 22', 'b.ageMonths < 24'));
+
+                        break;
+
+                    case self::AGE_RANGE_BETWEEN_20_AND_22:
+                        $orX->add($qb->expr()->andX('b.ageMonths >= 20', 'b.ageMonths < 22'));
+
+                        break;
+                }
+            }
+            if ($orX->count() > 0) {
+                $qb->andWhere($orX);
+            }
+        }
+
+        return $qb->getQuery()->getResult();
+    }
+
     /**
      * Compteurs des bovins actifs par tranche d'âge.
      *
diff --git a/src/State/Bovin/BovineInventoryExportProvider.php b/src/State/Bovin/BovineInventoryExportProvider.php
index a987485..4146e3d 100644
--- a/src/State/Bovin/BovineInventoryExportProvider.php
+++ b/src/State/Bovin/BovineInventoryExportProvider.php
@@ -7,15 +7,18 @@ namespace App\State\Bovin;
 use ApiPlatform\Metadata\Operation;
 use ApiPlatform\State\ProviderInterface;
 use App\Entity\Bovine;
+use App\Repository\BovineRepository;
 use DateTimeImmutable;
-use Doctrine\ORM\EntityManagerInterface;
-use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
 use PhpOffice\PhpSpreadsheet\IOFactory;
+use PhpOffice\PhpSpreadsheet\RichText\RichText;
+use PhpOffice\PhpSpreadsheet\Shared\Date as ExcelDate;
 use PhpOffice\PhpSpreadsheet\Spreadsheet;
 use PhpOffice\PhpSpreadsheet\Style\Alignment;
 use PhpOffice\PhpSpreadsheet\Style\Border;
 use PhpOffice\PhpSpreadsheet\Style\Fill;
-use PhpOffice\PhpSpreadsheet\Style\NumberFormat;
+use PhpOffice\PhpSpreadsheet\Worksheet\PageSetup;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+use Symfony\Component\HttpFoundation\RequestStack;
 use Symfony\Component\HttpFoundation\Response;
 
 /**
@@ -23,44 +26,62 @@ use Symfony\Component\HttpFoundation\Response;
  */
 final class BovineInventoryExportProvider implements ProviderInterface
 {
-    private const HEADER_FILL = 'FFF1F5F9';
+    private const FARM_NAME = 'FERME SCEA LES NAUDS';
 
+    private const HEADER_FILL = 'FFCCECFF';
+
+    private const SUBTITLE_TEXT_COLOR = 'FFFF0000';
+
+    // Couleurs pastel pour les lignes de données selon l'âge.
     private const COLOR_RED = 'FFFCA5A5';
 
     private const COLOR_ORANGE = 'FFFDBA74';
 
-    private const COLOR_YELLOW = 'FFFDE047';
+    private const COLOR_YELLOW = 'FFFEF08A';
 
-    private const HEADERS = [
-        'N° National',
-        'N° Travail',
-        'Sexe',
-        'Né le',
-        'Age (mois)',
-        'Race',
-        'Bâtiment',
-        'Case',
-        'Entrée le',
+    private const BREED_CODE_LIMOUSINE = '34';
+
+    private const BREED_CODE_CHAROLAISE = '38';
+
+    /**
+     * Largeurs de colonnes (A à R).
+     */
+    private const COLUMN_WIDTHS = [
+        'A' => 3.7,
+        'B' => 6.3,
+        'C' => 3.7,
+        'D' => 15.3,
+        'E' => 3.0,
+        'F' => 3.0,
+        'G' => 3.0,
+        'H' => 6.6,
+        'I' => 13.9,
+        'J' => 11.4,
+        'K' => 11.4,
+        'L' => 7.5,
+        'M' => 6.1,
+        'N' => 6.0,
+        'O' => 11.4,
+        'P' => 5.7,
+        'Q' => 5.0,
+        'R' => 14.4,
     ];
 
-    private const COLUMN_WIDTHS = [18, 12, 10, 12, 12, 12, 30, 8, 12];
-
     public function __construct(
-        private EntityManagerInterface $em,
+        private BovineRepository $bovineRepository,
+        private RequestStack $requestStack,
     ) {}
 
     public function provide(Operation $operation, array $uriVariables = [], array $context = []): Response
     {
-        $bovines = $this->em->createQueryBuilder()
-            ->select('b')
-            ->from(Bovine::class, 'b')
-            ->where('b.exitedAt IS NULL')
-            ->orderBy('b.birthDate', 'ASC')
-            ->getQuery()
-            ->getResult()
-        ;
+        $request   = $this->requestStack->getCurrentRequest();
+        $raw       = (string) ($request?->query->get('ageRanges') ?? '');
+        $ageRanges = '' === $raw ? [] : array_values(array_filter(array_map('trim', explode(',', $raw))));
 
-        $spreadsheet = $this->buildSpreadsheet($bovines);
+        $bovines = $this->bovineRepository->findActiveForInventoryExport($ageRanges);
+        $bovines = $this->sortBovines($bovines);
+
+        $spreadsheet = $this->buildSpreadsheet($bovines, $ageRanges);
         $body        = $this->renderXlsx($spreadsheet);
         $filename    = sprintf('inventaire_bovins_%s.xlsx', new DateTimeImmutable()->format('Y-m-d'));
 
@@ -73,107 +94,311 @@ final class BovineInventoryExportProvider implements ProviderInterface
     }
 
     /**
+     * Tri par âge décroissant puis race (Limousine d'abord, puis Charolaise, puis autres).
+     *
      * @param list<Bovine> $bovines
+     *
+     * @return list<Bovine>
      */
-    private function buildSpreadsheet(array $bovines): Spreadsheet
+    private function sortBovines(array $bovines): array
+    {
+        usort($bovines, function (Bovine $a, Bovine $b): int {
+            $ageDiff = ($b->getAgeMonths() ?? 0) <=> ($a->getAgeMonths() ?? 0);
+            if (0 !== $ageDiff) {
+                return $ageDiff;
+            }
+
+            return $this->breedRank($a) <=> $this->breedRank($b);
+        });
+
+        return array_values($bovines);
+    }
+
+    private function breedRank(Bovine $bovine): int
+    {
+        $code = $bovine->getBovineType()?->getCode();
+
+        return match ($code) {
+            self::BREED_CODE_LIMOUSINE  => 0,
+            self::BREED_CODE_CHAROLAISE => 1,
+            default                     => 2,
+        };
+    }
+
+    /**
+     * @param list<Bovine> $bovines
+     * @param list<string> $ageRanges
+     */
+    private function buildSpreadsheet(array $bovines, array $ageRanges): Spreadsheet
     {
         $spreadsheet = new Spreadsheet();
-        $sheet       = $spreadsheet->getActiveSheet();
-        $sheet->setTitle('Inventaire');
 
-        // Header row
-        foreach (self::HEADERS as $index => $label) {
-            $sheet->setCellValue([$index + 1, 1], $label);
-        }
+        // Police par défaut sur tout le classeur (en-têtes + data)
+        $spreadsheet->getDefaultStyle()->getFont()->setName('Aptos Narrow')->setSize(11);
 
-        $lastColumn  = $sheet->getHighestColumn();
-        $headerRange = sprintf('A1:%s1', $lastColumn);
-        $sheet->getStyle($headerRange)->applyFromArray([
-            'font'      => ['bold' => true],
-            'alignment' => ['horizontal' => Alignment::HORIZONTAL_CENTER],
-            'fill'      => [
+        $sheet = $spreadsheet->getActiveSheet();
+        $sheet->setTitle('Alerte_Taurillons');
+
+        // Configuration impression : A4 paysage, ajusté à 1 page de large,
+        // lignes 3 et 4 (sous-titre + en-têtes) répétées en haut de chaque page.
+        $pageSetup = $sheet->getPageSetup();
+        $pageSetup->setPaperSize(PageSetup::PAPERSIZE_A4);
+        $pageSetup->setOrientation(PageSetup::ORIENTATION_LANDSCAPE);
+        $pageSetup->setFitToWidth(1);
+        $pageSetup->setFitToHeight(0); // illimité en hauteur, on tient juste sur 1 page de large
+        $pageSetup->setRowsToRepeatAtTopByStartAndEnd(3, 4);
+        $pageSetup->setHorizontalCentered(true);
+        $sheet->getPageMargins()->setTop(0.4)->setBottom(0.4)->setLeft(0.3)->setRight(0.3);
+
+        $year = (int) new DateTimeImmutable()->format('Y');
+
+        // Ligne 1 : titre rich text (Arial Black 18 noir + Arial Black 20 rouge pour l'année)
+        $richTitle = new RichText();
+        $first     = $richTitle->createTextRun(sprintf('%s  - ', self::FARM_NAME));
+        $first->getFont()->setName('Arial Black')->setSize(18)->setBold(true);
+        $second = $richTitle->createTextRun(sprintf('TAURILLONS %d', $year));
+        $second->getFont()->setName('Arial Black')->setSize(20)->setBold(true)
+            ->getColor()->setARGB('FFFF0000')
+        ;
+        $sheet->getCell('A1')->setValue($richTitle);
+        $sheet->getRowDimension(1)->setRowHeight(32.25);
+
+        // Date du jour à droite
+        $sheet->setCellValue('R1', ExcelDate::PHPToExcel(new DateTimeImmutable()));
+        $sheet->getStyle('R1')->getNumberFormat()->setFormatCode('m/d/yyyy');
+        $sheet->getStyle('R1')->getAlignment()->setHorizontal(Alignment::HORIZONTAL_RIGHT);
+        $sheet->getStyle('R1')->getFont()->setSize(14)->setBold(true);
+
+        // Bordure épaisse en bas du bloc titre (toute la largeur du tableau)
+        $sheet->getStyle('A1:R1')->getBorders()->getBottom()->setBorderStyle(Border::BORDER_THICK);
+
+        // Ligne 3 : sous-titre dynamique fusionné sur toute la largeur du tableau
+        $sheet->setCellValue('A3', $this->computeSubtitle($ageRanges));
+        $sheet->mergeCells('A3:R3');
+        $sheet->getStyle('A3:R3')->applyFromArray([
+            'font' => [
+                'size'  => 18,
+                'bold'  => true,
+                'color' => ['argb' => self::SUBTITLE_TEXT_COLOR],
+            ],
+            'fill' => [
                 'fillType'   => Fill::FILL_SOLID,
                 'startColor' => ['argb' => self::HEADER_FILL],
             ],
+            'alignment' => [
+                'horizontal' => Alignment::HORIZONTAL_CENTER,
+                'vertical'   => Alignment::VERTICAL_CENTER,
+            ],
             'borders' => [
-                'allBorders' => ['borderStyle' => Border::BORDER_THIN],
+                'top'   => ['borderStyle' => Border::BORDER_MEDIUM],
+                'right' => ['borderStyle' => Border::BORDER_MEDIUM],
+                'left'  => ['borderStyle' => Border::BORDER_MEDIUM],
             ],
         ]);
+        $sheet->getRowDimension(3)->setRowHeight(24.75);
 
-        // Column widths
-        foreach (self::COLUMN_WIDTHS as $index => $width) {
-            $sheet->getColumnDimension(Coordinate::stringFromColumnIndex($index + 1))->setWidth($width);
+        // Ligne 4 : en-têtes
+        $headers = [
+            'A' => 'Limousin',
+            'B' => 'N° de travail',
+            'C' => 'Charolais',
+            'D' => "N°\nNational",
+            'E' => "Paturelle\n1    2    3",
+            'F' => '',
+            'G' => '',
+            'H' => 'Case',
+            'I' => 'Vendeur',
+            'J' => 'Date de naissance',
+            'K' => "Date\nentrée",
+            'L' => "Age\nentrée",
+            'M' => "Poids\n(kg)",
+            'N' => "Prix\ndu kg",
+            'O' => 'Total €',
+            'P' => "Age\ndu jour",
+            'Q' => 'Trpt',
+            'R' => 'Prix final',
+        ];
+        foreach ($headers as $col => $value) {
+            $sheet->setCellValue($col.'4', $value);
+        }
+        $sheet->getRowDimension(4)->setRowHeight(43.5);
+        $sheet->getStyle('A4:R4')->applyFromArray([
+            'font'      => ['bold' => true],
+            'alignment' => [
+                'horizontal' => Alignment::HORIZONTAL_CENTER,
+                'vertical'   => Alignment::VERTICAL_CENTER,
+                'wrapText'   => true,
+            ],
+            'fill' => [
+                'fillType'   => Fill::FILL_SOLID,
+                'startColor' => ['argb' => self::HEADER_FILL],
+            ],
+        ]);
+        // Pseudo-merge "Paturelle 1 2 3" via centerContinuous sur E:G
+        $sheet->getStyle('E4:G4')->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER_CONTINUOUS);
+
+        // Texte des en-têtes A/B/C en diagonale (60°) comme dans le template,
+        // sans retour à la ligne (le texte peut être tronqué visuellement par la
+        // largeur de colonne, c'est l'effet recherché).
+        $sheet->getStyle('A4:C4')->getAlignment()
+            ->setTextRotation(60)
+            ->setWrapText(false)
+        ;
+
+        // Largeurs de colonnes
+        foreach (self::COLUMN_WIDTHS as $col => $width) {
+            $sheet->getColumnDimension($col)->setWidth($width);
         }
 
-        // N° National et N° Travail : valeurs numériques mais conservées en string
-        // (leading zeros, format métier) — on force le format texte pour éviter
-        // l'avertissement Excel "nombre stocké sous forme de texte".
-        $sheet->getStyle('A')->getNumberFormat()->setFormatCode(NumberFormat::FORMAT_TEXT);
-        $sheet->getStyle('B')->getNumberFormat()->setFormatCode(NumberFormat::FORMAT_TEXT);
-
-        // Data rows
-        $rowNumber = 2;
+        // Lignes de données
+        $rowNumber = 5;
         foreach ($bovines as $bovine) {
-            $values = $this->formatRow($bovine);
-            foreach ($values as $colIndex => $value) {
-                $sheet->setCellValue([$colIndex + 1, $rowNumber], $value);
-            }
-
-            $color = $this->ageColor($bovine->getAgeMonths());
-            if (null !== $color) {
-                $rowRange = sprintf('A%d:%s%d', $rowNumber, $lastColumn, $rowNumber);
-                $sheet->getStyle($rowRange)->applyFromArray([
-                    'fill' => [
-                        'fillType'   => Fill::FILL_SOLID,
-                        'startColor' => ['argb' => $color],
-                    ],
-                ]);
-            }
-
+            $this->writeBovineRow($sheet, $rowNumber, $bovine);
             ++$rowNumber;
         }
 
-        // Freeze header row + auto-filter
-        $sheet->freezePane('A2');
-        if ($rowNumber > 2) {
-            $sheet->setAutoFilter(sprintf('%s:%s%d', 'A1', $lastColumn, $rowNumber - 1));
-        } else {
-            $sheet->setAutoFilter($headerRange);
+        // Bordures sur l'ensemble du tableau (header + data)
+        $lastDataRow = $rowNumber - 1;
+        if ($lastDataRow >= 4) {
+            $range = 'A4:R'.$lastDataRow;
+            $sheet->getStyle($range)->getBorders()->applyFromArray([
+                'allBorders' => ['borderStyle' => Border::BORDER_THIN],
+                'top'        => ['borderStyle' => Border::BORDER_MEDIUM],
+                'outline'    => ['borderStyle' => Border::BORDER_MEDIUM],
+            ]);
         }
 
         return $spreadsheet;
     }
 
+    private function writeBovineRow(Worksheet $sheet, int $row, Bovine $bovine): void
+    {
+        $type     = $bovine->getBovineType();
+        $isLim    = self::BREED_CODE_LIMOUSINE === $type?->getCode();
+        $isCharo  = self::BREED_CODE_CHAROLAISE === $type?->getCode();
+        $building = $bovine->getBuildingCase()?->getIdBuilding() ?? $bovine->getBuilding();
+        $code     = $building?->getCode();
+
+        $sheet->setCellValue('A'.$row, $isLim ? 'X' : '');
+        $sheet->setCellValue('B'.$row, null !== $bovine->getWorkNumber() && ctype_digit($bovine->getWorkNumber())
+            ? (int) $bovine->getWorkNumber()
+            : ($bovine->getWorkNumber() ?? ''));
+        $sheet->setCellValue('C'.$row, $isCharo ? 'X' : '');
+        $sheet->setCellValue('D'.$row, 'FR '.$bovine->getNationalNumber());
+        $sheet->setCellValue('E'.$row, 'B1' === $code ? 'X' : '');
+        $sheet->setCellValue('F'.$row, 'B2' === $code ? 'X' : '');
+        $sheet->setCellValue('G'.$row, 'B3' === $code ? 'X' : '');
+        $sheet->setCellValue('H'.$row, $bovine->getBuildingCase()?->getCaseNumber() ?? '');
+        $sheet->setCellValue('I'.$row, $bovine->getSupplier()?->getName() ?? '');
+
+        $birth   = $bovine->getBirthDate();
+        $arrival = $bovine->getArrivalDate();
+        if (null !== $birth) {
+            $sheet->setCellValue('J'.$row, ExcelDate::PHPToExcel($birth));
+        }
+        if (null !== $arrival) {
+            $sheet->setCellValue('K'.$row, ExcelDate::PHPToExcel($arrival));
+        }
+        if (null !== $birth && null !== $arrival) {
+            $diff = $birth->diff($arrival);
+            $sheet->setCellValue('L'.$row, ($diff->y * 12) + $diff->m);
+        }
+
+        if (null !== $bovine->getReceivedWeight()) {
+            $sheet->setCellValue('M'.$row, $bovine->getReceivedWeight());
+        }
+        if (null !== $bovine->getPricePerKg()) {
+            $sheet->setCellValue('N'.$row, $bovine->getPricePerKg());
+        }
+        if (null !== $bovine->getFinalPrice()) {
+            $sheet->setCellValue('O'.$row, $bovine->getFinalPrice());
+        }
+
+        $sheet->setCellValue('P'.$row, $bovine->getAgeMonths() ?? '');
+        // Q (Tport) intentionnellement vide pour l'instant
+        // R = O - Q ; Q vide → R = O
+        if (null !== $bovine->getFinalPrice()) {
+            $sheet->setCellValue('R'.$row, $bovine->getFinalPrice());
+        }
+
+        // Formats par colonne
+        $sheet->getStyle('B'.$row)->getNumberFormat()->setFormatCode('0000');
+        $sheet->getStyle('J'.$row.':K'.$row)->getNumberFormat()->setFormatCode('m/d/yyyy');
+        $sheet->getStyle('M'.$row)->getNumberFormat()->setFormatCode('#,##0');
+        $sheet->getStyle('N'.$row)->getNumberFormat()->setFormatCode('#,##0.00\ "€";\-#,##0.00\ "€"');
+        $sheet->getStyle('O'.$row)->getNumberFormat()->setFormatCode('#,##0.00\ "€";\-#,##0.00\ "€"');
+        $sheet->getStyle('R'.$row)->getNumberFormat()->setFormatCode('#,##0.00\ "€";\-#,##0.00\ "€"');
+
+        // Centrage : A, C, E, F, G, H, P (cellules avec X ou nombres courts)
+        foreach (['A', 'C', 'E', 'F', 'G', 'H', 'P'] as $col) {
+            $sheet->getStyle($col.$row)->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
+        }
+
+        // Coloration uniquement de la cellule "Age mois Aujourd'hui" (P) selon l'âge
+        $color = $this->ageColor($bovine->getAgeMonths());
+        if (null !== $color) {
+            $sheet->getStyle('P'.$row)->getFill()->setFillType(Fill::FILL_SOLID)
+                ->getStartColor()->setARGB($color)
+            ;
+        }
+    }
+
     /**
-     * @return list<null|int|string>
+     * Sous-titre dynamique selon les tranches d'âge cochées.
+     *
+     * @param list<string> $ageRanges
      */
-    private function formatRow(Bovine $bovine): array
+    private function computeSubtitle(array $ageRanges): string
     {
-        return [
-            $bovine->getNationalNumber(),
-            $bovine->getWorkNumber(),
-            $this->formatSex($bovine->getSex()),
-            $this->formatDate($bovine->getBirthDate()),
-            $bovine->getAgeMonths(),
-            $bovine->getBovineType()?->getLabel(),
-            $bovine->getBuildingCase()?->getIdBuilding()?->getLabel(),
-            $bovine->getBuildingCase()?->getCaseNumber(),
-            $this->formatDate($bovine->getArrivalDate()),
-        ];
-    }
+        $selected = array_values(array_intersect(
+            $ageRanges,
+            [
+                BovineRepository::AGE_RANGE_BETWEEN_20_AND_22,
+                BovineRepository::AGE_RANGE_BETWEEN_22_AND_24,
+                BovineRepository::AGE_RANGE_OVER_24,
+            ]
+        ));
 
-    private function formatSex(?string $sex): ?string
-    {
-        return match ($sex) {
-            'M'     => 'Mâle',
-            'F'     => 'Femelle',
-            default => $sex,
-        };
-    }
+        $hasLow  = in_array(BovineRepository::AGE_RANGE_BETWEEN_20_AND_22, $selected, true);
+        $hasMid  = in_array(BovineRepository::AGE_RANGE_BETWEEN_22_AND_24, $selected, true);
+        $hasHigh = in_array(BovineRepository::AGE_RANGE_OVER_24, $selected, true);
 
-    private function formatDate(?DateTimeImmutable $date): ?string
-    {
-        return $date?->format('d/m/Y');
+        if ([] === $selected) {
+            return 'Inventaire complet';
+        }
+
+        if ($hasLow && $hasMid && $hasHigh) {
+            return 'Âge SUPÉRIEUR ou ÉGAL à 20 MOIS';
+        }
+        if ($hasMid && $hasHigh && !$hasLow) {
+            return 'Âge SUPÉRIEUR ou ÉGAL à 22 MOIS';
+        }
+        if ($hasHigh && !$hasMid && !$hasLow) {
+            return 'Âge SUPÉRIEUR ou ÉGAL à 24 MOIS';
+        }
+        if ($hasLow && $hasMid && !$hasHigh) {
+            return 'Âge entre 20 et 24 MOIS';
+        }
+        if ($hasMid && !$hasLow && !$hasHigh) {
+            return 'Âge entre 22 et 24 MOIS';
+        }
+        if ($hasLow && !$hasMid && !$hasHigh) {
+            return 'Âge entre 20 et 22 MOIS';
+        }
+
+        // Sélection non contiguë (ex: low + high sans mid) → liste explicite
+        $parts = [];
+        if ($hasLow) {
+            $parts[] = '20 à 22 mois';
+        }
+        if ($hasMid) {
+            $parts[] = '22 à 24 mois';
+        }
+        if ($hasHigh) {
+            $parts[] = '≥ 24 mois';
+        }
+
+        return 'Tranches d\'âge : '.implode(' / ', $parts);
     }
 
     private function ageColor(?int $ageMonths): ?string