Update app.py

app.py

@@ -49,7 +49,8 @@ def fx_datatable(code:str):
     namespace = {}
     fun = compile(code,'<string>','exec')
     exec(fun,namespace)
-    return namespace['py_exe'],namespace['py_exe'].to_excel('data.xlsx',index=False)
+    with pd.ExcelWriter('data.xlsx') as pd_table:
+        return namespace['py_exe'],namespace['py_exe'].to_excel(pd_table,index=False)
 '''    
 def fx_dd(tk:str,s:str):
     headers= {"Content-Type": "application/json"}