如何在spreadsheetcontrol中添加另外的工作表（sheet）?

想要在Spreadsheetcontrol中添加一个工作表，但使用下面的代码搞不定。

Workbook workbook = new Workbook();

        // Add a new worksheet under the specified name.
        workbook.Worksheets.Add();
        //workbook.Worksheets.Add("TestSheet2");
        // Add a new worksheet to the specified position in the collection of worksheets.
        //workbook.Worksheets.Insert(1, "TestSheet3");
        //workbook.Worksheets.Insert(3);

https://jingyan.baidu.com/article/597a064349f110312a52436c.html