Update app.py

app.py

@@ -34,7 +34,11 @@ def printV(message,verbosityLevel):
     global verbosity
     if verbosity>=verbosityLevel:
         print(message)
-        
+
+@st.cache_data
+def convert_df(df):
+   return df.to_csv(index=False).encode('utf-8')
+
 def save_data(
     config_dict: Dict[str,str], audio_paths: List[str], userid: str,
     ) -> None: