public FrozenPaneSettings FrozenPaneSettings {get;}
For these settings to be saved in the workbook file, PanesAreFrozen must be True.
Note: Frozen and unfrozen panes cannot be used simultaneously, so depending on whether the panes are frozen or unfrozen, these settings may not be used.
Target Platforms: Android 4.4+, iOS 8+
Development Environments: Visual Studio 2015+, Visual Studio for Mac Preview, Xamarin for Visual Studio 4.2+