df_string_output = gr.Textbox(label="")

app.py

@@ -62,8 +62,10 @@ def respond(user_message, chat_history):
 
 with gr.Blocks() as demo:
     with gr.Row():
-        file_upload = gr.File(label="Upload your file")
-        df_string_output = gr.Variable()
+        with gr.Column():
+            file_upload = gr.File(label="Upload your file")
+        with gr.Column():
+            df_string_output = gr.Textbox(label="")
 
     with gr.Row():
         chatbot = gr.Chatbot()