Upload interface.py

src/interface.py

@@ -519,9 +519,9 @@ class makeInterface:
         </style>
         """, unsafe_allow_html=True)
         
-        # File uploader with empty label (our CSS will provide the instructions)
+        # File uploader with a descriptive label (hidden visually by CSS/label_visibility)
         all_uploaded_files = st.file_uploader(
-            "", 
+            "Carica i file Excel (incluso Allegato 666)", 
             accept_multiple_files=True,
             label_visibility="collapsed"
         )