Update app.py

app.py

@@ -104,9 +104,9 @@ st.cache_data()
 def load_data(upd_file):
     # Read CSV or Excel file
     if upd_file.name.endswith('.csv'):
-        return pd.read_csv(file)
+        return pd.read_csv(upd_file)
     elif upd_file.name.endswith('.xlsx') or file.name.endswith('.xls'):
-        return pd.read_excel(file)
+        return pd.read_excel(upd_file)
     else:
         raise ValueError("Unsupported file format. Only CSV and Excel files are supported.")