我在使用Open XML向excel写入文件时遇到了这个问题-“我们在output.xlsx中发现了一些内容问题”

Question

我已经编写了一个代码来写入OpenXML中的excel文件。这仅第二次有效，打开文件时出现错误，因为“我们发现output.xlsx中的某些内容有问题”

public static void WriteToExcel(string fileName, string SKU_Address, string 
SKU_Value, string ItemName_Address, string Item_Name_Value)
        {
            SpreadsheetDocument spreadsheetDocument = 
SpreadsheetDocument.Open(fileName, true);

            // Add a WorkbookPart to the document.
            WorkbookPart workbookpart = spreadsheetDocument.WorkbookPart;

            // Add a WorksheetPart to the WorkbookPart.
            WorksheetPart worksheetPart = 
workbookpart.WorksheetParts.FirstOrDefault();
            Worksheet worksheet = worksheetPart.Worksheet;          
            SheetData sheetData = 
worksheetPart.Worksheet.Elements<SheetData>().First();

            Row row = new Row();         
            //intialize a cell and add values to the required cell based on address
            Cell cell1 = new Cell() { CellReference = SKU_Address, DataType = CellValues.String, CellValue = new CellValue(SKU_Value) };
            row.Append(cell1);
            //intialize a cell and add values to the required cell based on address
            Cell cell2 = new Cell() { CellReference = ItemName_Address, DataType = CellValues.String, CellValue = new CellValue(Item_Name_Value) };
            row.Append(cell2);
            sheetData.Append(row);

            worksheetPart.Worksheet.Save();

            // Close the document.
            spreadsheetDocument.Close();            
    }

我想我在其他地方缺少什么。请帮忙。