IKVM+波伊

或者，你可以使用Interop。。。

您可以使用ExcelXmlWriter。

它工作得很好。

你可能想看看GemBox.Spresheet。

他们有一个免费版本，具有所有功能，但如果符合您的需要，则限制为每张150行，每张工作簿5页。

我还不需要自己使用它，但看起来很有趣。

Syncfusion Essential XlsIO可以做到这一点。它对Microsoft office没有依赖性，并且对不同的平台也有特定的支持。

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代码示例：

//Creates a new instance for ExcelEngine.
ExcelEngine excelEngine = new ExcelEngine();
//Loads or open an existing workbook through Open method of IWorkbooks
IWorkbook workbook = excelEngine.Excel.Workbooks.Open(fileName);
//To-Do some manipulation|
//To-Do some manipulation
//Set the version of the workbook.
workbook.Version = ExcelVersion.Excel2013;
//Save the workbook in file system as xlsx format
workbook.SaveAs(outputFileName);

如果您符合资格（收入低于100万美元），可通过社区许可计划免费获得整套控件。注：我为Syncfusion工作。

您可以使用此库创建格式良好的Excel文件：http://officehelper.codeplex.com/documentation参见以下示例：

using (ExcelHelper helper = new ExcelHelper(TEMPLATE_FILE_NAME, GENERATED_FILE_NAME))
{
    helper.Direction = ExcelHelper.DirectionType.TOP_TO_DOWN;
    helper.CurrentSheetName = "Sheet1";
    helper.CurrentPosition = new CellRef("C3");

    //the template xlsx should contains the named range "header"; use the command "insert"/"name".
    helper.InsertRange("header");

    //the template xlsx should contains the named range "sample1";
    //inside this range you should have cells with these values:
    //<name> , <value> and <comment>, which will be replaced by the values from the getSample()
    CellRangeTemplate sample1 = helper.CreateCellRangeTemplate("sample1", new List<string> {"name", "value", "comment"}); 
    helper.InsertRange(sample1, getSample());

    //you could use here other named ranges to insert new cells and call InsertRange as many times you want, 
    //it will be copied one after another;
    //even you can change direction or the current cell/sheet before you insert

    //typically you put all your "template ranges" (the names) on the same sheet and then you just delete it
    helper.DeleteSheet("Sheet3");
}        

示例如下：

private IEnumerable<List<object>> getSample()
{
    var random = new Random();

    for (int loop = 0; loop < 3000; loop++)
    {
        yield return new List<object> {"test", DateTime.Now.AddDays(random.NextDouble()*100 - 50), loop};
    }
}

我也投票支持GemBox.Spreadsheet。

非常快速且易于使用，网站上有大量示例。

以全新的执行速度完成了我的报告任务。