diff --git a/client/src/components/SalesHistory.tsx b/client/src/components/SalesHistory.tsx
index e14f663..8baeac3 100644
--- a/client/src/components/SalesHistory.tsx
+++ b/client/src/components/SalesHistory.tsx
@@ -12,6 +12,7 @@ import { apiRequest } from '@/lib/queryClient';
 import type { Sale } from '@shared/schema';
 import { History, Download, Trash2, Eye, Filter, FileText, Search, X, Calendar, Users } from 'lucide-react';
 import SaleDetailsModal from '@/components/SaleDetailsModal';
+import { formatDateTime } from '@/lib/export';
 
 interface SalesHistoryProps {
   canDelete?: boolean;
@@ -364,6 +365,35 @@ export default function SalesHistory({ canDelete = false }: SalesHistoryProps) {
     setSearchQuery('');
   };
 
+  const exportToExcel = async () => {
+    if (filteredSales.length === 0) {
+      toast({
+        title: "Aucune donnée",
+        description: "Aucune vente à exporter",
+        variant: "destructive",
+      });
+      return;
+    }
+
+    try {
+      const { exportToExcel } = await import('@/lib/export');
+      await exportToExcel(filteredSales);
+      
+      toast({
+        title: "Export réussi",
+        description: "Le fichier Excel a été téléchargé",
+        variant: "success",
+      });
+    } catch (error) {
+      console.error('Erreur lors de l\'export Excel:', error);
+      toast({
+        title: "Erreur d'export",
+        description: "Impossible de générer le fichier Excel",
+        variant: "destructive",
+      });
+    }
+  };
+
   if (isLoading) {
     return (
       <div className="elegant-card">
@@ -475,12 +505,12 @@ export default function SalesHistory({ canDelete = false }: SalesHistoryProps) {
                 Registre PDF Détaillé
               </button>
               <button
-                onClick={exportToCSV}
+                onClick={exportToExcel}
                 disabled={filteredSales.length === 0}
                 className="modern-button modern-button-secondary"
               >
                 <Download className="h-4 w-4" />
-                Export CSV
+                Export Excel (.xlsx)
               </button>
             </div>
           </div>
diff --git a/client/src/lib/export.ts b/client/src/lib/export.ts
index 1fb45af..cd18be6 100644
--- a/client/src/lib/export.ts
+++ b/client/src/lib/export.ts
@@ -1,5 +1,137 @@
 import { Sale } from '@/types/sale';
 
+export async function exportToExcel(sales: Sale[]): Promise<void> {
+  if (sales.length === 0) return;
+
+  try {
+    const XLSX = await import('xlsx');
+    const { utils, writeFile } = XLSX;
+
+    // Créer un nouveau classeur
+    const workbook = utils.book_new();
+
+    // Préparer les données pour la feuille principale
+    const salesData: any[] = [];
+    
+    sales.forEach(sale => {
+      if (sale.products && sale.products.length > 0) {
+        // Pour chaque produit, créer une ligne avec les infos de la vente
+        sale.products.forEach((product, productIndex) => {
+          salesData.push({
+            'ID Vente': sale.id,
+            'Date et Heure': new Date(sale.timestamp).toLocaleString('fr-FR'),
+            'Vendeur': sale.vendeur,
+            'Produit N°': productIndex + 1,
+            'Type Article': product.typeArticle,
+            'Catégorie': product.categorie,
+            'Quantité': product.quantite,
+            'Code Générique': product.gencode || '',
+            'Nom Client': sale.nom,
+            'Prénom Client': sale.prenom,
+            'Date Naissance': sale.dateNaissance || '',
+            'Lieu Naissance': sale.lieuNaissance || '',
+            'Mode Paiement': sale.modePaiement || '',
+            'Type Identité': sale.typeIdentite || '',
+            'Numéro Identité': sale.numeroIdentite || '',
+            'Autorité Délivrance': sale.autoriteDelivrance || '',
+            'Date Délivrance': sale.dateDelivrance || '',
+            'Photo Recto': sale.photoRecto ? 'Oui' : 'Non',
+            'Photo Verso': sale.photoVerso ? 'Oui' : 'Non',
+            'Photo Ticket': sale.photoTicket ? 'Oui' : 'Non'
+          });
+        });
+      } else {
+        // Fallback pour les ventes sans produits
+        salesData.push({
+          'ID Vente': sale.id,
+          'Date et Heure': new Date(sale.timestamp).toLocaleString('fr-FR'),
+          'Vendeur': sale.vendeur,
+          'Produit N°': 'N/A',
+          'Type Article': 'N/A',
+          'Catégorie': 'N/A',
+          'Quantité': 0,
+          'Code Générique': '',
+          'Nom Client': sale.nom,
+          'Prénom Client': sale.prenom,
+          'Date Naissance': sale.dateNaissance || '',
+          'Lieu Naissance': sale.lieuNaissance || '',
+          'Mode Paiement': sale.modePaiement || '',
+          'Type Identité': sale.typeIdentite || '',
+          'Numéro Identité': sale.numeroIdentite || '',
+          'Autorité Délivrance': sale.autoriteDelivrance || '',
+          'Date Délivrance': sale.dateDelivrance || '',
+          'Photo Recto': sale.photoRecto ? 'Oui' : 'Non',
+          'Photo Verso': sale.photoVerso ? 'Oui' : 'Non',
+          'Photo Ticket': sale.photoTicket ? 'Oui' : 'Non'
+        });
+      }
+    });
+
+    // Créer la feuille des ventes
+    const salesWorksheet = utils.json_to_sheet(salesData);
+    
+    // Ajuster la largeur des colonnes
+    const columnWidths = [
+      { wch: 10 }, // ID Vente
+      { wch: 18 }, // Date et Heure
+      { wch: 15 }, // Vendeur
+      { wch: 10 }, // Produit N°
+      { wch: 25 }, // Type Article
+      { wch: 10 }, // Catégorie
+      { wch: 8 },  // Quantité
+      { wch: 15 }, // Code Générique
+      { wch: 15 }, // Nom Client
+      { wch: 15 }, // Prénom Client
+      { wch: 12 }, // Date Naissance
+      { wch: 15 }, // Lieu Naissance
+      { wch: 12 }, // Mode Paiement
+      { wch: 12 }, // Type Identité
+      { wch: 15 }, // Numéro Identité
+      { wch: 18 }, // Autorité Délivrance
+      { wch: 12 }, // Date Délivrance
+      { wch: 10 }, // Photo Recto
+      { wch: 10 }, // Photo Verso
+      { wch: 10 }  // Photo Ticket
+    ];
+    
+    salesWorksheet['!cols'] = columnWidths;
+
+    // Ajouter la feuille au classeur
+    utils.book_append_sheet(workbook, salesWorksheet, 'Ventes Détaillées');
+
+    // Créer une feuille de résumé
+    const summaryData = [
+      { 'Statistique': 'Nombre total de ventes', 'Valeur': sales.length },
+      { 'Statistique': 'Nombre total de produits vendus', 'Valeur': salesData.length },
+      { 'Statistique': 'Date de génération', 'Valeur': new Date().toLocaleString('fr-FR') },
+      { 'Statistique': 'Ventes avec photos recto', 'Valeur': sales.filter(s => s.photoRecto).length },
+      { 'Statistique': 'Ventes avec photos verso', 'Valeur': sales.filter(s => s.photoVerso).length },
+      { 'Statistique': 'Ventes avec photos ticket', 'Valeur': sales.filter(s => s.photoTicket).length }
+    ];
+
+    const summaryWorksheet = utils.json_to_sheet(summaryData);
+    summaryWorksheet['!cols'] = [{ wch: 30 }, { wch: 20 }];
+    utils.book_append_sheet(workbook, summaryWorksheet, 'Résumé');
+
+    // Exporter le fichier
+    const fileName = `registre-feux-artifice-${new Date().toISOString().split('T')[0]}.xlsx`;
+    writeFile(workbook, fileName);
+    
+  } catch (error) {
+    console.error('Erreur lors de l\'export Excel:', error);
+    throw error;
+  }
+}
+
+export function formatDate(dateString: string): string {
+  return new Date(dateString).toLocaleDateString('fr-FR');
+}
+
+export function formatDateTime(dateString: string): string {
+  return new Date(dateString).toLocaleString('fr-FR');
+}
+
+// Fonction CSV basique maintenue pour compatibilité si nécessaire
 export function exportToCSV(sales: Sale[]): void {
   if (sales.length === 0) return;
 
@@ -85,11 +217,3 @@ export function exportToCSV(sales: Sale[]): void {
   
   URL.revokeObjectURL(link.href);
 }
-
-export function formatDate(dateString: string): string {
-  return new Date(dateString).toLocaleDateString('fr-FR');
-}
-
-export function formatDateTime(dateString: string): string {
-  return new Date(dateString).toLocaleString('fr-FR');
-}
diff --git a/package-lock.json b/package-lock.json
index 45082c9..8e3bfdf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -82,6 +82,8 @@
         "vaul": "^1.1.2",
         "wouter": "^3.3.5",
         "ws": "^8.18.0",
+        "xlsx": "^0.18.5",
+        "xlsx-js-style": "^1.2.0",
         "zod": "^3.24.2",
         "zod-validation-error": "^3.4.0"
       },
@@ -3771,6 +3773,15 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/adler-32": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/adler-32/-/adler-32-1.3.1.tgz",
+      "integrity": "sha512-ynZ4w/nUUv5rrsR8UUGoe1VC9hZj6V5hU9Qw1HlMDJGEJw5S7TfTErWTjMys6M7vr0YWcPqs3qAr4ss0nDfP+A==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/ansi-regex": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.1.0.tgz",
@@ -4136,6 +4147,19 @@
       "license": "MIT",
       "optional": true
     },
+    "node_modules/cfb": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/cfb/-/cfb-1.2.2.tgz",
+      "integrity": "sha512-KfdUZsSOw19/ObEWasvBP/Ac4reZvAGauZhs6S/gqNhXhI7cKwvlH7ulj+dOEYnca4bm4SGo8C1bTAQvnTjgQA==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "adler-32": "~1.3.0",
+        "crc-32": "~1.2.0"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/chokidar": {
       "version": "3.6.0",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.6.0.tgz",
@@ -4206,6 +4230,15 @@
         "react-dom": "^18 || ^19 || ^19.0.0-rc"
       }
     },
+    "node_modules/codepage": {
+      "version": "1.15.0",
+      "resolved": "https://registry.npmjs.org/codepage/-/codepage-1.15.0.tgz",
+      "integrity": "sha512-3g6NUTPd/YtuuGrhMnOMRjFc+LJw/bnMp3+0r/Wcz3IXUuCosKRJvMphm5+Q+bvTVGcJJuRvVLuYba+WojaFaA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/color-convert": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
@@ -4300,6 +4333,18 @@
         "url": "https://opencollective.com/core-js"
       }
     },
+    "node_modules/crc-32": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.2.2.tgz",
+      "integrity": "sha512-ROmzCKrTnOwybPcJApAA6WBWij23HVfGVNKqqrZpuyZOHqK2CwHSvpGuyt/UNNvaIjEd8X5IFGp4Mh+Ie1IHJQ==",
+      "license": "Apache-2.0",
+      "bin": {
+        "crc32": "bin/crc32.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -5439,6 +5484,15 @@
       "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==",
       "license": "MIT"
     },
+    "node_modules/exit-on-epipe": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/exit-on-epipe/-/exit-on-epipe-1.0.1.tgz",
+      "integrity": "sha512-h2z5mrROTxce56S+pnvAV890uu7ls7f1kEvVGJbw1OlFH3/mlJ5bkXu0KRyW94v37zzHPiUd55iLn3DA7TjWpw==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/express": {
       "version": "4.21.2",
       "resolved": "https://registry.npmjs.org/express/-/express-4.21.2.tgz",
@@ -5679,6 +5733,15 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/frac": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/frac/-/frac-1.1.2.tgz",
+      "integrity": "sha512-w/XBfkibaTl3YDqASwfDUqkna4Z2p9cFSr1aHDt0WoMTECnRfBOv2WArlZILlqgWlmdIlALXGpM2AOhEk5W3IA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/fraction.js": {
       "version": "4.3.7",
       "resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.3.7.tgz",
@@ -7349,6 +7412,18 @@
       "optional": true,
       "peer": true
     },
+    "node_modules/printj": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/printj/-/printj-1.1.2.tgz",
+      "integrity": "sha512-zA2SmoLaxZyArQTOPj5LXecR+RagfPSU5Kw1qP+jkWeNlrq+eJZyY2oS68SU1Z/7/myXM4lo9716laOFAVStCQ==",
+      "license": "Apache-2.0",
+      "bin": {
+        "printj": "bin/printj.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/prop-types": {
       "version": "15.8.1",
       "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.8.1.tgz",
@@ -8051,6 +8126,18 @@
         "node": ">= 10.x"
       }
     },
+    "node_modules/ssf": {
+      "version": "0.11.2",
+      "resolved": "https://registry.npmjs.org/ssf/-/ssf-0.11.2.tgz",
+      "integrity": "sha512-+idbmIXoYET47hH+d7dfm2epdOMUDjqcB4648sTZ+t2JwoyBFL/insLfB/racrDmsKB3diwsDA696pZMieAC5g==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "frac": "~1.1.2"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/stackblur-canvas": {
       "version": "2.7.0",
       "resolved": "https://registry.npmjs.org/stackblur-canvas/-/stackblur-canvas-2.7.0.tgz",
@@ -9545,6 +9632,24 @@
         "node": ">= 8"
       }
     },
+    "node_modules/wmf": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wmf/-/wmf-1.0.2.tgz",
+      "integrity": "sha512-/p9K7bEh0Dj6WbXg4JG0xvLQmIadrner1bi45VMJTfnbVHsc7yIajZyoSoK60/dtVBs12Fm6WkUI5/3WAVsNMw==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/word": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/word/-/word-0.3.0.tgz",
+      "integrity": "sha512-OELeY0Q61OXpdUfTp+oweA/vtLVg5VDOXh+3he3PNzLGG/y0oylSOC1xRVj0+l4vQ3tj/bB1HVHv1ocXkQceFA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/wouter": {
       "version": "3.3.5",
       "resolved": "https://registry.npmjs.org/wouter/-/wouter-3.3.5.tgz",
@@ -9671,6 +9776,101 @@
         }
       }
     },
+    "node_modules/xlsx": {
+      "version": "0.18.5",
+      "resolved": "https://registry.npmjs.org/xlsx/-/xlsx-0.18.5.tgz",
+      "integrity": "sha512-dmg3LCjBPHZnQp5/F/+nnTa+miPJxUXB6vtk42YjBBKayDNagxGEeIdWApkYPOf3Z3pm3k62Knjzp7lMeTEtFQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "adler-32": "~1.3.0",
+        "cfb": "~1.2.1",
+        "codepage": "~1.15.0",
+        "crc-32": "~1.2.1",
+        "ssf": "~0.11.2",
+        "wmf": "~1.0.1",
+        "word": "~0.3.0"
+      },
+      "bin": {
+        "xlsx": "bin/xlsx.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/xlsx-js-style": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/xlsx-js-style/-/xlsx-js-style-1.2.0.tgz",
+      "integrity": "sha512-DDT4FXFSWfT4DXMSok/m3TvmP1gvO3dn0Eu/c+eXHW5Kzmp7IczNkxg/iEPnImbG9X0Vb8QhROda5eatSR/97Q==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "adler-32": "~1.2.0",
+        "cfb": "^1.1.4",
+        "codepage": "~1.14.0",
+        "commander": "~2.17.1",
+        "crc-32": "~1.2.0",
+        "exit-on-epipe": "~1.0.1",
+        "fflate": "^0.3.8",
+        "ssf": "~0.11.2",
+        "wmf": "~1.0.1",
+        "word": "~0.3.0"
+      },
+      "bin": {
+        "xlsx": "bin/xlsx.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/xlsx-js-style/node_modules/adler-32": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/adler-32/-/adler-32-1.2.0.tgz",
+      "integrity": "sha512-/vUqU/UY4MVeFsg+SsK6c+/05RZXIHZMGJA+PX5JyWI0ZRcBpupnRuPLU/NXXoFwMYCPCoxIfElM2eS+DUXCqQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "exit-on-epipe": "~1.0.1",
+        "printj": "~1.1.0"
+      },
+      "bin": {
+        "adler32": "bin/adler32.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/xlsx-js-style/node_modules/codepage": {
+      "version": "1.14.0",
+      "resolved": "https://registry.npmjs.org/codepage/-/codepage-1.14.0.tgz",
+      "integrity": "sha512-iz3zJLhlrg37/gYRWgEPkaFTtzmnEv1h+r7NgZum2lFElYQPi0/5bnmuDfODHxfp0INEfnRqyfyeIJDbb7ahRw==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "commander": "~2.14.1",
+        "exit-on-epipe": "~1.0.1"
+      },
+      "bin": {
+        "codepage": "bin/codepage.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/xlsx-js-style/node_modules/codepage/node_modules/commander": {
+      "version": "2.14.1",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.14.1.tgz",
+      "integrity": "sha512-+YR16o3rK53SmWHU3rEM3tPAh2rwb1yPcQX5irVn7mb0gXbwuCCrnkbV5+PBfETdfg1vui07nM6PCG1zndcjQw==",
+      "license": "MIT"
+    },
+    "node_modules/xlsx-js-style/node_modules/commander": {
+      "version": "2.17.1",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
+      "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==",
+      "license": "MIT"
+    },
+    "node_modules/xlsx-js-style/node_modules/fflate": {
+      "version": "0.3.11",
+      "resolved": "https://registry.npmjs.org/fflate/-/fflate-0.3.11.tgz",
+      "integrity": "sha512-Rr5QlUeGN1mbOHlaqcSYMKVpPbgLy0AWT/W0EHxA6NGI12yO1jpoui2zBBvU2G824ltM6Ut8BFgfHSBGfkmS0A==",
+      "license": "MIT"
+    },
     "node_modules/xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
diff --git a/package.json b/package.json
index 5538135..629d329 100644
--- a/package.json
+++ b/package.json
@@ -84,6 +84,8 @@
     "vaul": "^1.1.2",
     "wouter": "^3.3.5",
     "ws": "^8.18.0",
+    "xlsx": "^0.18.5",
+    "xlsx-js-style": "^1.2.0",
     "zod": "^3.24.2",
     "zod-validation-error": "^3.4.0"
   },