ExcelDna.Registration.TypeConversion.ConvertToDateTime C# (CSharp) Метод

        public static DateTime ConvertToDateTime(object value)
        {
            try
            {
                return DateTime.FromOADate(ConvertToDouble(value));
            }
            catch
            {
                // Might exceed range of DateTime
                throw new InvalidCastException("Value " + value.ToString() + " could not be converted to DateTime.");
            }
        }