Update app.py

app.py

@@ -20,7 +20,8 @@ def process_excel_file(file_path, non_question_columns_str):
     # Filter the DataFrame to include only question columns
     df_questions = df[question_columns]
     # Drop Timestamp column
-    df_questions.drop(columns=["Timestamp"], inplace=True)
+    if "Timestamp" in df_questions.columns:
+        df_questions.drop(columns=["Timestamp"], inplace=True)
     
     
     # Extract headers as questions