Update app.py

app.py

@@ -235,7 +235,7 @@ def main():
                 # Add a button to export data to CSV
                 if st.button("Export to CSV"):
                     # Export the DataFrame to CSV
-                    csv_data = df.to_csv(index=False)
+                    csv_data = full_df.to_csv(index=False)
 
                     # Create a link to download the CSV file
                     st.download_button(