Update app.py

app.py

@@ -40,7 +40,7 @@ st.markdown("<h1>CSV and Excel Appender</h1>", unsafe_allow_html=True)
 st.write("A website that is used for appending multiple CSV and Excel files and converting them to a desired format.")
 
 # File uploader for multiple CSV and Excel files
-uploaded_files = st.file_uploader("Upload CSV or Excel files", type=["csv", "xlsx"], accept_multiple_files=True)
+uploaded_files = st.file_uploader("Upload CSV or Excel files", type=["csv", "xlsx", "xls"], accept_multiple_files=True)
 
 if uploaded_files:
     # Initialize an empty list to store DataFrames