C# - 以编程方式打开和关闭 excel 文件的正确方法

Question

我似乎找不到打开和关闭 excel 文件的正确方法。

这是我打开我的文件所必须的，我发现它过于复杂:

        Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application();

        Microsoft.Office.Interop.Excel.Workbook excelWorkbook = excelApp.Workbooks.Open(workbookPath,
            0, false, 5, "", "", false, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "",
            true, false, 0, true, false, false);
        Microsoft.Office.Interop.Excel.Sheets excelSheets = excelWorkbook.Worksheets;

        Worksheet sheet = (Microsoft.Office.Interop.Excel.Worksheet)excelApp.Worksheets[2];
        sheet.Select(Type.Missing);

我不知道如何正确关闭它。我需要用相同的路径保存它，并确保关闭后 excel 不会仍在后台运行。

谁能帮我解决这个问题？ 谢谢

Answer 1

完成后释放 COM 对象...

using Excel = Microsoft.Office.Interop.Excel;
using System.Runtime.InteropServices;

# declare the application object
var xl = new Excel.Application();

# open a file
var wb = xl.Workbooks.Open("some_file.xlsx");


# close the file
wb.Close();

# close the application and release resources
xl.Quit();

#release the COM objects created as a final step:

Marshal.ReleaseComObject(wb);
Marshal.ReleaseComObject(xl);