Update app.py

app.py

@@ -426,7 +426,43 @@ with st.sidebar:
 # --------------------------
 # Main App Pages
 # --------------------------
-if app_mode == "Data Cleaning":
+# --------------------------
+# Main App Pages
+# --------------------------
+if app_mode == "Data Upload":
+    st.title("📤 Data Upload & Profiling")
+    
+    uploaded_file = st.file_uploader("Upload your dataset (CSV/XLSX)", type=["csv", "xlsx"])
+    
+    if uploaded_file:
+        try:
+            if uploaded_file.name.endswith('.csv'):
+                df = pd.read_csv(uploaded_file)
+            else:
+                df = pd.read_excel(uploaded_file)
+            
+            st.session_state.raw_data = df
+            
+            col1, col2, col3 = st.columns(3)
+            with col1:
+                st.metric("Rows", df.shape[0])
+            with col2:
+                st.metric("Columns", df.shape[1])
+            with col3:
+                st.metric("Missing Values", df.isna().sum().sum())
+            
+            with st.expander("Data Preview", expanded=True):
+                st.dataframe(df.head(10), use_container_width=True)
+            
+            if st.button("Generate Full Profile Report"):
+                with st.spinner("Generating comprehensive analysis..."):
+                    pr = ProfileReport(df, explorative=True)
+                    st_profile_report(pr)
+        
+        except Exception as e:
+            st.error(f"Error loading file: {str(e)}")
+            
+elif app_mode == "Data Cleaning":
     st.title("🧹 Smart Data Cleaning")
     
     if st.session_state.raw_data is None: