Update app.py

app.py

@@ -49,8 +49,9 @@ def main():
 
     with st.expander("2: DataSet Preview"):
         if uploaded_file is not None:
-
             data = pd.read_csv(uploaded_file)
+        else: 
+            data = pd.read_csv('example.csv')
             # Step 2: Data Overview
             view1, view2,view3, view4 = st.columns(4)
             with view1: