Update app.py

app.py

@@ -1,6 +1,7 @@
 import streamlit as st
 import pandas as pd
 import altair as alt
+import io
 
 st.set_page_config(page_title="Shipment Monitoring Dashboard", layout="wide")
 st.title("Shipment Monitoring Dashboard")
@@ -99,6 +100,20 @@ with tabs[0]:
         sorted_df = filtered_df[['MAWB', 'ETA', 'ATA', 'Shipment Status', 'Cartons', 'Last Mile Carrier', 'Exception Note Description']].sort_values(by='ETA')
         st.dataframe(sorted_df, use_container_width=True)
 
+        # Export to Excel
+        excel_buffer = io.BytesIO()
+        with pd.ExcelWriter(excel_buffer, engine='xlsxwriter') as writer:
+            sorted_df.to_excel(writer, index=False, sheet_name='Shipment Details')
+            writer.save()
+            excel_data = excel_buffer.getvalue()
+        
+        st.download_button(
+            label="📥 Download Shipment Details as Excel",
+            data=excel_data,
+            file_name="shipment_details.xlsx",
+            mime="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
+            )
+
 with tabs[1]:
     st.header("Upload CTN File for Last Mile Summary")
     ctn_file = st.file_uploader("Upload Excel with Last Mile Service", type=["xlsx"], key="ctn_upload")