Update app.py

app.py

@@ -157,10 +157,11 @@ def main():
         filename = generate_filename(user_prompt, choice)
         create_file(filename, user_prompt, response)
         st.sidebar.markdown(get_table_download_link(filename), unsafe_allow_html=True)
-    
+
     all_files = glob.glob("*.*")
     all_files = [file for file in all_files if len(os.path.splitext(file)[0]) >= 20]  # exclude files with short names
-    all_files = sorted(all_files, key=lambda x: (os.path.splitext(x)[1], x))  # sort by file type and file name
+    all_files.sort(key=lambda x: (os.path.splitext(x)[1], x), reverse=True)  # sort by file type and file name in descending order
+    
     for file in all_files:
         col1, col3 = st.sidebar.columns([5,1])  # adjust the ratio as needed
         with col1:
@@ -169,6 +170,6 @@ def main():
             if st.button("🗑", key="delete_"+file):
                 os.remove(file)
                 st.experimental_rerun()
-
+            
 if __name__ == "__main__":
     main()