diff --git a/app/pages/page.tsx b/app/pages/page.tsx
index c043523..3b60456 100644
--- a/app/pages/page.tsx
+++ b/app/pages/page.tsx
@@ -724,6 +724,26 @@ export default function CarnetPage() {
   const handleMissionFileSelect = async (file: { key: string; name: string; path: string }) => {
     if (!selectedMission) return;
     
+    // Check file extension to determine if it's a text file
+    const fileName = file.name.toLowerCase();
+    const textExtensions = ['.md', '.txt', '.json', '.yaml', '.yml', '.csv', '.log', '.conf', '.config', '.ini', '.env'];
+    const isTextFile = textExtensions.some(ext => fileName.endsWith(ext));
+    
+    // For binary files (PDF, images, etc.), download them instead
+    if (!isTextFile) {
+      try {
+        // Get the file URL for download
+        const fileUrl = `/api/missions/image/${file.key}`;
+        // Open in new tab or download
+        window.open(fileUrl, '_blank');
+        return;
+      } catch (error) {
+        console.error('Error opening file:', error);
+        return;
+      }
+    }
+    
+    // For text files, fetch and open in editor
     try {
       const response = await fetch(`/api/missions/${selectedMission.id}/files`, {
         method: 'POST',