diff --git a/admin-dashboard.html b/admin-dashboard.html
index 9c2ac0c..f7f9f83 100644
--- a/admin-dashboard.html
+++ b/admin-dashboard.html
@@ -5,6 +5,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Admin Dashboard - PP Kunovice</title>
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
+    <script src="https://cdn.sheetjs.com/xlsx/0.18.5/package/dist/xlsx.full.min.js"></script>
     <script src="https://cdn.tailwindcss.com"></script>
     <style>
         :root {
@@ -4382,7 +4383,7 @@ function filterReservations() {
     displayReservations(filtered);
 }
 
-// Function to export reservations to CSV with proper column separation
+// Function to export reservations to XLSX
 function exportReservations() {
     if (!window.allReservations || !window.allReservations.length) {
         showNotification('Žádné rezervace k exportu', 'warning');
@@ -4437,47 +4438,41 @@ function exportReservations() {
         }
     };
 
-    // Create CSV content with semicolon delimiter
+    // Prepare data for XLSX
     const headers = ['Řidič', 'Vozidlo', 'Od', 'Do', 'Účel'];
     
-    // Create CSV rows
-    const csvRows = [];
-    
-    // Add header row
-    csvRows.push(headers.join(';'));
-    
-    // Add data rows
-    for (const res of dataToExport) {
-        const row = [
-            `"${String(res.driverName || '').replace(/"/g, '""')}"`,
-            `"${String(res.vehicle || '').replace(/"/g, '""')}"`,
-            `"${formatDateTime(res.start) || ''}"`,
-            `"${formatDateTime(res.end) || ''}"`,
-            `"${String(res.purpose || '').replace(/"/g, '""')}"`
-        ];
-        csvRows.push(row.join(';'));
-    }
+    // Convert data to worksheet
+    const wsData = [
+        headers,
+        ...dataToExport.map(res => [
+            res.driverName || '',
+            res.vehicle || '',
+            formatDateTime(res.start) || '',
+            formatDateTime(res.end) || '',
+            res.purpose || ''
+        ])
+    ];
 
-    // Create CSV string with BOM for Excel
-    const csvString = '\uFEFF' + csvRows.join('\r\n');
+    // Create worksheet
+    const ws = XLSX.utils.aoa_to_sheet(wsData);
     
-    // Create and trigger download
-    const blob = new Blob([csvString], { type: 'text/csv;charset=utf-8' });
-    const link = document.createElement('a');
+    // Set column widths
+    const colWidths = [
+        { wch: 20 }, // Řidič
+        { wch: 25 }, // Vozidlo
+        { wch: 20 }, // Od
+        { wch: 20 }, // Do
+        { wch: 40 }  // Účel
+    ];
+    ws['!cols'] = colWidths;
+    
+    // Create workbook
+    const wb = XLSX.utils.book_new();
+    XLSX.utils.book_append_sheet(wb, ws, 'Rezervace');
+    
+    // Generate XLSX file
     const timestamp = new Date().toISOString().split('T')[0];
-    
-    link.href = URL.createObjectURL(blob);
-    link.download = `rezervace_${timestamp}.csv`;
-    link.style.display = 'none';
-    
-    document.body.appendChild(link);
-    link.click();
-    
-    // Clean up
-    setTimeout(() => {
-        document.body.removeChild(link);
-        URL.revokeObjectURL(link.href);
-    }, 100);
+    XLSX.writeFile(wb, `rezervace_${timestamp}.xlsx`);
 }
 
 // Helper function to format date and time