https://help.syncfusion.com/cr/uwp/Syncfusion.UI.Xaml.SpreadsheetHelper.html
Namespace Syncfusion.UI.Xaml.SpreadsheetHelper - UWP API Reference | Syncfusion
Namespace Syncfusion.UI.Xaml.SpreadsheetHelper - UWP API Reference
namespacesyncfusionuixamluwp