Text属性可用于从单元格中检索文本内容.因此，您可以尝试按以下方式使用该属性:

The Text property can be used to retrieve the text contents from a Cell. So, you could try to use the property as follows:

private string getCellValue(Worksheet Sheet, int Row, int Column)
    {            
        string cellValue = Sheet.Cells[Row, Column].Text.ToString();
        return cellValue;
    }