/// <summary>
/// Loads the user defined functions into the Excel recalculating engine.
/// </summary>
/// <param name="Xls"></param>
private void LoadUdfs(ExcelFile Xls)
{
Xls.AddUserDefinedFunction(TUserDefinedFunctionScope.Local, TUserDefinedFunctionLocation.Internal, new SumCellsWithSameColor());
Xls.AddUserDefinedFunction(TUserDefinedFunctionScope.Local, TUserDefinedFunctionLocation.Internal, new IsPrime());
Xls.AddUserDefinedFunction(TUserDefinedFunctionScope.Local, TUserDefinedFunctionLocation.Internal, new BoolChoose());
Xls.AddUserDefinedFunction(TUserDefinedFunctionScope.Local, TUserDefinedFunctionLocation.Internal, new Lowest());
}