Update app.py

app.py

@@ -1,7 +1,7 @@
 import gradio as gr
 import pandas as pd
 from functions import process_file_bm25 , process_file_bert , generate_plot , generate
-
+from tempfile import NamedTemporaryFile
 #------------------------------------------------------
 
 # Create the state object
@@ -55,7 +55,9 @@ with gr.Blocks() as bm25:
                     return None,doc  # Return immediately with the error message
             
                 doc = 'File uploaded! Press Cluster button'
-                return df,doc  # Return the success message
+                temp_file = NamedTemporaryFile(delete=False, suffix=".xlsx")
+                df.to_excel(temp_file.name, index=False)
+                return temp_file.name,doc  # Return the success message
 
           
             def download_df():