Update excel_chat.py

excel_chat.py

@@ -237,7 +237,7 @@ def chat_with_mistral(source_cols, dest_col, prompt, excel_file, url, search_col
             try:
                 if cpt == checkpoint:
                     df2 = df
-                    df2.to_excel("checkpointfile", index=False)
+                    df2.to_excel("checkpointfile.xlsx", index=False)
                     
                     checkpoint += 1
             except Exception as e:
@@ -257,7 +257,7 @@ def chat_with_mistral(source_cols, dest_col, prompt, excel_file, url, search_col
     with zipfile.ZipFile(zip_file_path, 'w') as zipf:
         zipf.write(conf_file_path, os.path.basename(conf_file_path))
         
-    return file_name, df.head(5), new_prompts, new_keywords, new_user, zip_file_path, "checkpointfile"
+    return file_name, df.head(5), new_prompts, new_keywords, new_user, zip_file_path, "checkpointfile.xlsx"
 
 
 def get_columns(file,progress=gr.Progress()):