Update app.py

app.py

@@ -361,6 +361,6 @@ with st.sidebar:
             vectorstore = create_vector_store_from_text_chunks(text_chunks)
             st.session_state.conversation = create_conversation_chain(vectorstore)
             st.markdown('# Extracted Text of Length:' + length + ' and Created Search Index')
-            filename = generate_filename(raw, choice)
+            filename = generate_filename(raw, 'txt')
             create_file(filename, raw_text, '')