Update app.py

app.py

@@ -100,6 +100,11 @@ class BasicAgent:
 
 def download_and_detect_file(url: str):
     try:
+        mime_type_xlsx = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
+        mime_type_txt = "text/plain"
+        mime_type_mp3 = "audio/mpeg"
+        mime_type_jpg = "image/jpeg"
+        mime_type_png = "image/png"
         # Download the file
         response = requests.get(url)
         response.raise_for_status()  # Raise error if download failed