如何在C#中创建Excel(. XLS和. XLSX)文件而不安装Microsoft Office?

如何使用C#创建Excel电子表格,而无需在运行代码的机器上安装Excel?

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您实际上可能想要查看C#中可用的互操作类(例如Microsoft.Office.Interop.Excel。您说没有OLE(这不是),但互操作类非常易于使用。查看C#文档在这里(Interop for Excel从C#PDF的第1072页开始)。

如果你没有尝试过,你可能会印象深刻。

请注意Microsoft的立场

Microsoft目前不推荐,也不支持,从任何无人值守的Microsoft Office应用程序自动化,非交互式客户端应用程序或组件(包括ASP、ASP.NET、DCOM和NT服务),因为Office可能表现出不稳定当Office在此环境中运行时的行为和/或死锁。

一个非常轻量级的选项可能是使用超文本标记语言表。只需在文件中创建头、正文和表标记,并将其保存为扩展名为. xls的文件。您可以使用Microsoft特定属性来设置输出的样式,包括公式。

我知道你可能没有在Web应用程序中编写此代码,但这是通过超文本标记语言表组成Excel文件的示例。如果你正在编写控制台应用程序、桌面应用程序或服务,可以使用此技术。

IKVM+POI

或者,您可以使用Interop…

您可以使用OLEDB创建和操作Excel文件。检查这个:使用OLEDB读写Excel

典型例子:

using (OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\temp\\test.xls;Extended Properties='Excel 8.0;HDR=Yes'")){conn.Open();OleDbCommand cmd = new OleDbCommand("CREATE TABLE [Sheet1] ([Column1] string, [Column2] string)", conn);cmd.ExecuteNonQuery();}

编辑-更多链接:

你可能想看看电子表格

他们有一个具有所有功能的免费版本,但每个工作表限制为150行,每个工作簿限制为5张,如果符合您的需求。

我还不需要自己使用它,但看起来很有趣。

Java的开源解决方案是apachepoi。也许这里有一种设置互操作的方法,但我对Java了解不够,无法回答这个问题。

当我探索这个问题时,我最终使用了Interop程序集。

您可以考虑使用XML电子表格2003格式创建文件。这是一种使用记录良好的模式的简单XML格式。

以下是使用LINQ to XML执行此操作的方法,并附有示例代码:

使用LINQ到XML快速导入和导出Excel数据

这有点复杂,因为您必须导入命名空间等,但它确实可以让您避免任何外部依赖关系。

(当然,它是VB. NET,而不是C#,但您始终可以在自己的项目中隔离VB. NET内容以使用XML文字,并在C#中执行其他所有操作。)

我同意生成XML电子表格,这里有一个关于如何为C#3做的示例(每个人都只是在VB 9: P中写博客)http://www.aaron-powell.com/linq-to-xml-to-excel

你试过Sylk吗?

我们曾经在经典的asp中生成Excel表,现在我们也在寻找ExcelGenerater。

Sylk的优点是,您可以格式化单元格。

各种可用的Office 2003 XML库非常适合较小的excel文件。但是,我发现以XML格式保存的大型工作簿的大小是一个问题。例如,我使用的工作簿在新的(并且不可否认地更紧凑)XLSX格式中将是40MB,变成了360MB的XML文件。

就我的研究而言,有两个商业软件包允许输出到旧的二进制文件格式。它们是:

两者都不便宜(分别为500美元和800美元,我认为)。

我好奇的是Excel输出模块OpenOffice.org.我想知道它们是否可以从Java移植到. Net。

商业解决方案. NET的SpreadsheetGear将做到这一点。

您可以查看实时ASP.NET(C#和VB)示例这里并下载评估版本这里

免责声明:我拥有SpreadsheetGear LLC

您可以使用ExcelXmlWriter

它运行良好。

我最近刚刚使用了FlexCel.NET,发现它是一个很好的库!我不会说太多的软件产品。在这里给出整个销售宣传没有意义,你可以阅读他们网站上的所有功能。

它是一个商业产品,但如果你购买它,你就会得到完整的源代码。所以我想你可以把它编译成你的程序集,如果你真的想的话。否则,它只是一个额外的程序集,需要xcop-没有配置或安装或类似的东西。

我认为如果没有第三方库,您将找不到任何方法来做到这一点,因为. NET框架显然没有对它的内置支持,而OLE自动化只是一个痛苦的世界。

我使用过的几个选项:

如果XLSX是必须的:ExcelPackage是一个好的开始,但当开发人员停止使用它时,它就消失了。ExML从那里开始并添加了一些功能。ExML不是一个糟糕的选择,我仍然在几个生产网站中使用它。

不过,对于我所有的新项目,我使用NPOI,即apachepoi的. NET端口。NPOI 2.0(Alpha)还支持XLSX。

我成功地使用了以下开源项目:

  • OOXML格式的ExcelPackage(Office 2007)

  • NPOI for. XLS格式(Office 2003)。NPOI 2.0(Beta)也支持XLSX。

看看我的博客文章:

在C#中创建Excel电子表格. XLS和. XLSX

带有Excel表和动态图表的NPOI

我也支持电子表格

非常快速和易于使用,在他们的网站上有大量的例子。

将我的报告任务提升到一个全新的执行速度水平。

嗯,

您还可以使用像Aspose这样的第三方库。

此库的优点是它不需要在您的计算机上安装Excel,这在您的情况下是理想的。

如果您对xlsx格式感到满意,请尝试我的库EPPlus。它从ExcelPackage的源代码开始,但后来变成了完全重写。

它支持范围、单元格样式、图表、形状、图片、命名范围、自动过滤和许多其他东西。

你有两个选择:

  • EPPlus 4,在LGPL下许可(原始分支,开发到2020年)

  • EPPlus 5,许可下Polyform非商业1.0.0(自2020年)。

从EPPlus 5readme.md:

有了新许可证,EPPlus在某些情况下仍然可以免费使用,但需要商业许可证才能用于商业业务。

EPPlus网站:https://www.epplussoftware.com/

您可以使用名为ExcelLibrary的库。这是一个发布在Google Code上的免费开源库:

ExcelLibrary

这看起来是您上面提到的PHP ExcelWriter的端口。它还不会写入新的. xlsx格式,但他们正在努力添加该功能。

它非常简单、小巧且易于使用。此外,它还有一个DataSetHelper,可让您使用DataSets和DataTable轻松处理Excel数据。

ExcelLibrary似乎仍然只适用于较旧的Excel格式(. xls文件),但将来可能会添加对较新的2007/2010格式的支持。

您还可以使用EPPlus,它仅适用于Excel 2007/2010格式文件(. xlsx文件)。还有NPOI适用于两者。

如评论中所述,每个库都有一些已知的错误。总的来说,随着时间的推移,EPPlus似乎是最佳选择。它似乎也在更积极地更新和记录。

此外,正如下面 @АртёмЦарионов 所指出的,EPPlus支持透视表,ExcelLibrary可能有一些支持(ExcelLibrary中的透视表问题

这里有几个快速参考链接:
ExcelLibrary-GNU Lesser GPL
EPPlus-GNU(LGPL)-不再维护
EPPlus 5-Polyform非商业性-2020年5月开始
NPOI-apache许可证

以下是ExcelLibrary的一些示例代码:

这是一个从数据库中获取数据并从中创建工作簿的示例。请注意,ExcelLibrary代码是底部的单行:

//Create the data set and tableDataSet ds = new DataSet("New_DataSet");DataTable dt = new DataTable("New_DataTable");
//Set the locale for eachds.Locale = System.Threading.Thread.CurrentThread.CurrentCulture;dt.Locale = System.Threading.Thread.CurrentThread.CurrentCulture;
//Open a DB connection (in this example with OleDB)OleDbConnection con = new OleDbConnection(dbConnectionString);con.Open();
//Create a query and fill the data table with the data from the DBstring sql = "SELECT Whatever FROM MyDBTable;";OleDbCommand cmd = new OleDbCommand(sql, con);OleDbDataAdapter adptr = new OleDbDataAdapter();
adptr.SelectCommand = cmd;adptr.Fill(dt);con.Close();
//Add the table to the data setds.Tables.Add(dt);
//Here's the easy part. Create the Excel worksheet from the data setExcelLibrary.DataSetHelper.CreateWorkbook("MyExcelFile.xls", ds);

创建Excel文件就这么简单。您也可以手动创建Excel文件,但上述功能给我留下了深刻的印象。

您可以使用Excel XML格式将其写入XML并将其命名为. XLS扩展名,它将使用excel打开。您可以控制XML文件标题中的所有格式(粗体、宽度等)。

有一个来自Wikipedia的示例XML

如果您正在创建Excel 2007/2010文件,请尝试此开源项目:https://github.com/closedxml/closedxml

它提供了一种面向对象的方式来操作文件(类似于VBA),无需处理XML文档的麻烦。它可以使用任何. NET语言,如C#和Visual Basic(VB)。

ClosedXML允许您在没有Excel的情况下创建Excel 2007/2010文件应用程序。典型的例子是在Web上创建Excel报告服务器:

var workbook = new XLWorkbook();var worksheet = workbook.Worksheets.Add("Sample Sheet");worksheet.Cell("A1").Value = "Hello World!";workbook.SaveAs("HelloWorld.xlsx");

您可以使用此库创建格式良好的Excel文件:http://officehelper.codeplex.com/documentation
见下面的示例:

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 ithelper.DeleteSheet("Sheet3");}

其中示例如下所示:

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};}}

http://www.codeproject.com/KB/cs/Excel_and_C_.aspx<=为什么不直接使用windows的内置功能,只需在服务器上安装office,您安装的任何应用程序都可以自动化。

使用原生方法要容易得多。

如果它安装了你可以使用它,这是最真棒和使用不足的功能在Windows它被称为COM在过去的好时光,它节省了你吨的时间和痛苦。

或者更容易使用ref lib MS耗材-http://csharp.net-informations.com/excel/csharp-create-excel.htm

一些第三方组件供应商(如In的碎片或同步)提供了非常好的Excel导出功能,不需要安装Microsoft Excel。

由于这些供应商还提供高级UI网格组件,如果您希望Excel导出的样式和布局在应用程序的用户交互界面中模拟网格的当前状态,这些组件特别方便。

如果您的导出旨在在服务器端执行,重点是要导出的数据并且没有指向UI的链接,那么我会选择其中一个免费的开源选项(例如ExcelLibrary)。

我以前参与过尝试在Microsoft Office套件上使用服务器端自动化的项目。基于此经验,我强烈建议反对这种方法。

public class GridViewExportUtil{public static void Export(string fileName, GridView gv){HttpContext.Current.Response.Clear();HttpContext.Current.Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", fileName));HttpContext.Current.Response.ContentType = "application/ms-excel";
using (StringWriter sw = new StringWriter()){using (HtmlTextWriter htw = new HtmlTextWriter(sw)){//  Create a form to contain the gridTable table = new Table();
//  add the header row to the tableif (gv.HeaderRow != null){GridViewExportUtil.PrepareControlForExport(gv.HeaderRow);table.Rows.Add(gv.HeaderRow);}
//  add each of the data rows to the tableforeach (GridViewRow row in gv.Rows){GridViewExportUtil.PrepareControlForExport(row);table.Rows.Add(row);}
//  add the footer row to the tableif (gv.FooterRow != null){GridViewExportUtil.PrepareControlForExport(gv.FooterRow);table.Rows.Add(gv.FooterRow);}
//  render the table into the htmlwritertable.RenderControl(htw);
//  render the htmlwriter into the responseHttpContext.Current.Response.Write(sw.ToString());HttpContext.Current.Response.End();}}}
/// <summary>/// Replace any of the contained controls with literals/// </summary>/// <param name="control"></param>private static void PrepareControlForExport(Control control){for (int i = 0; i < control.Controls.Count; i++){Control current = control.Controls[i];if (current is LinkButton){control.Controls.Remove(current);control.Controls.AddAt(i, new LiteralControl((current as LinkButton).Text));}else if (current is ImageButton){control.Controls.Remove(current);control.Controls.AddAt(i, new LiteralControl((current as ImageButton).AlternateText));}else if (current is HyperLink){control.Controls.Remove(current);control.Controls.AddAt(i, new LiteralControl((current as HyperLink).Text));}else if (current is DropDownList){control.Controls.Remove(current);control.Controls.AddAt(i, new LiteralControl((current as DropDownList).SelectedItem.Text));}else if (current is CheckBox){control.Controls.Remove(current);control.Controls.AddAt(i, new LiteralControl((current as CheckBox).Checked ? "True" : "False"));}
if (current.HasControls()){GridViewExportUtil.PrepareControlForExport(current);}}}}

嗨,这个解决方案是将您的网格模式导出到您的excel文件,它可能会帮助您

如何使用Microsoft Office的Open XML SDK 2.0?

一些好处:

  • 不需要安装Office
  • 由Microsoft制作=体面的MSDN留档
  • 只有一个。在项目中使用的Net dll
  • SDK附带了许多工具,如diff、validator等

链接:

只是想添加另一个对直接解决您的问题的第三方解决方案的引用:http://www.officewriter.com

(免责声明:我为SoftArtisans工作,这是一家制造Office Writer的公司)

这是一个完全免费的C#库,它允许您使用OpenXML库从DataSetDataTableList<>导出到真正的Excel 2007. xlsx文件:

http://mikesknowledgebase.com/pages/CSharp/ExportToExcel.htm

提供完整的源代码-免费-以及说明和演示应用程序。

将此类添加到应用程序后,只需一行代码即可将DataSet导出到Excel:

CreateExcelFile.CreateExcelDocument(myDataSet, "C:\\Sample.xlsx");

没有比这更简单的了…

它甚至不需要Excel出现在您的服务器上。

我使用以下代码创建excel 2007文件,该文件创建文件并写入该文件,但当我打开文件时,它给我错误exel无法打开文件bcz文件可能已损坏或文件扩展名不兼容。但如果我使用. xls文件,它的工作罚款

for (int i = 0; i < TotalFile; i++){Contact.Clear();if (innerloop == SplitSize){for (int j = 0; j < SplitSize; j++){string strContact = DSt.Tables[0].Rows[i * SplitSize + j][0].ToString();Contact.Add(strContact);}string strExcel = strFileName + "_" + i.ToString() + ".xlsx";File.WriteAllLines(strExcel, Contact.ToArray());}}

也指链接

我写了一个简单的代码导出数据集Excel不使用Excel对象使用System.IO.StreamWriter。

下面是将从数据集中读取所有表并将它们逐个写入工作表的代码。我从这篇文章获得了帮助。

public static void exportToExcel(DataSet source, string fileName){const string endExcelXML = "</Workbook>";const string startExcelXML = "<xml version>\r\n<Workbook " +"xmlns=\"urn:schemas-microsoft-com:office:spreadsheet\"\r\n" +" xmlns:o=\"urn:schemas-microsoft-com:office:office\"\r\n " +"xmlns:x=\"urn:schemas-    microsoft-com:office:" +"excel\"\r\n xmlns:ss=\"urn:schemas-microsoft-com:" +"office:spreadsheet\">\r\n <Styles>\r\n " +"<Style ss:ID=\"Default\" ss:Name=\"Normal\">\r\n " +"<Alignment ss:Vertical=\"Bottom\"/>\r\n <Borders/>" +"\r\n <Font/>\r\n <Interior/>\r\n <NumberFormat/>" +"\r\n <Protection/>\r\n </Style>\r\n " +"<Style ss:ID=\"BoldColumn\">\r\n <Font " +"x:Family=\"Swiss\" ss:Bold=\"1\"/>\r\n </Style>\r\n " +"<Style     ss:ID=\"StringLiteral\">\r\n <NumberFormat" +" ss:Format=\"@\"/>\r\n </Style>\r\n <Style " +"ss:ID=\"Decimal\">\r\n <NumberFormat " +"ss:Format=\"0.0000\"/>\r\n </Style>\r\n " +"<Style ss:ID=\"Integer\">\r\n <NumberFormat " +"ss:Format=\"0\"/>\r\n </Style>\r\n <Style " +"ss:ID=\"DateLiteral\">\r\n <NumberFormat " +"ss:Format=\"mm/dd/yyyy;@\"/>\r\n </Style>\r\n " +"</Styles>\r\n ";System.IO.StreamWriter excelDoc = null;excelDoc = new System.IO.StreamWriter(fileName);
int sheetCount = 1;excelDoc.Write(startExcelXML);foreach (DataTable table in source.Tables){int rowCount = 0;excelDoc.Write("<Worksheet ss:Name=\"" + table.TableName + "\">");excelDoc.Write("<Table>");excelDoc.Write("<Row>");for (int x = 0; x < table.Columns.Count; x++){excelDoc.Write("<Cell ss:StyleID=\"BoldColumn\"><Data ss:Type=\"String\">");excelDoc.Write(table.Columns[x].ColumnName);excelDoc.Write("</Data></Cell>");}excelDoc.Write("</Row>");foreach (DataRow x in table.Rows){rowCount++;//if the number of rows is > 64000 create a new page to continue outputif (rowCount == 64000){rowCount = 0;sheetCount++;excelDoc.Write("</Table>");excelDoc.Write(" </Worksheet>");excelDoc.Write("<Worksheet ss:Name=\"" + table.TableName + "\">");excelDoc.Write("<Table>");}excelDoc.Write("<Row>"); //ID=" + rowCount + "for (int y = 0; y < table.Columns.Count; y++){System.Type rowType;rowType = x[y].GetType();switch (rowType.ToString()){case "System.String":string XMLstring = x[y].ToString();XMLstring = XMLstring.Trim();XMLstring = XMLstring.Replace("&", "&");XMLstring = XMLstring.Replace(">", ">");XMLstring = XMLstring.Replace("<", "<");excelDoc.Write("<Cell ss:StyleID=\"StringLiteral\">" +"<Data ss:Type=\"String\">");excelDoc.Write(XMLstring);excelDoc.Write("</Data></Cell>");break;case "System.DateTime"://Excel has a specific Date Format of YYYY-MM-DD followed by//the letter 'T' then hh:mm:sss.lll Example 2005-01-31T24:01:21.000//The Following Code puts the date stored in XMLDate//to the format aboveDateTime XMLDate = (DateTime)x[y];string XMLDatetoString = ""; //Excel Converted DateXMLDatetoString = XMLDate.Year.ToString() +"-" +(XMLDate.Month < 10 ? "0" +XMLDate.Month.ToString() : XMLDate.Month.ToString()) +"-" +(XMLDate.Day < 10 ? "0" +XMLDate.Day.ToString() : XMLDate.Day.ToString()) +"T" +(XMLDate.Hour < 10 ? "0" +XMLDate.Hour.ToString() : XMLDate.Hour.ToString()) +":" +(XMLDate.Minute < 10 ? "0" +XMLDate.Minute.ToString() : XMLDate.Minute.ToString()) +":" +(XMLDate.Second < 10 ? "0" +XMLDate.Second.ToString() : XMLDate.Second.ToString()) +".000";excelDoc.Write("<Cell ss:StyleID=\"DateLiteral\">" +"<Data ss:Type=\"DateTime\">");excelDoc.Write(XMLDatetoString);excelDoc.Write("</Data></Cell>");break;case "System.Boolean":excelDoc.Write("<Cell ss:StyleID=\"StringLiteral\">" +"<Data ss:Type=\"String\">");excelDoc.Write(x[y].ToString());excelDoc.Write("</Data></Cell>");break;case "System.Int16":case "System.Int32":case "System.Int64":case "System.Byte":excelDoc.Write("<Cell ss:StyleID=\"Integer\">" +"<Data ss:Type=\"Number\">");excelDoc.Write(x[y].ToString());excelDoc.Write("</Data></Cell>");break;case "System.Decimal":case "System.Double":excelDoc.Write("<Cell ss:StyleID=\"Decimal\">" +"<Data ss:Type=\"Number\">");excelDoc.Write(x[y].ToString());excelDoc.Write("</Data></Cell>");break;case "System.DBNull":excelDoc.Write("<Cell ss:StyleID=\"StringLiteral\">" +"<Data ss:Type=\"String\">");excelDoc.Write("");excelDoc.Write("</Data></Cell>");break;default:throw (new Exception(rowType.ToString() + " not handled."));}}excelDoc.Write("</Row>");}excelDoc.Write("</Table>");excelDoc.Write(" </Worksheet>");sheetCount++;}

excelDoc.Write(endExcelXML);excelDoc.Close();}

Microsoft提供的Open XML SDK 2.0简化了操作Open XML包和包中底层Open XML模式元素的任务。Open XML应用程序编程接口(API)封装了开发人员在Open XML包上执行的许多常见任务。

看看这个OpenXML:有助于避免在服务器上安装MS Excel的替代方案

同步Essential XlsIO可以做到这一点。它不依赖于Microsoft Office,并且还对不同的平台有特定的支持。

代码示例:

//Creates a new instance for ExcelEngine.ExcelEngine excelEngine = new ExcelEngine();//Loads or open an existing workbook through Open method of IWorkbooksIWorkbook 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 formatworkbook.SaveAs(outputFileName);

如果您符合条件(收入低于100万美元),整个控件套件都可以通过社区许可程序免费使用。注意:我为同步工作。

从C#创建Excel文件的最简单、最快捷的方法是使用Open XML生产力工具。Open XML生产力工具随Open XML SDK安装一起提供。该工具将任何Excel文件反向工程转换为C#代码。然后可以使用C#代码重新生成该文件。

所涉进程概述如下:

  1. 使用该工具安装Open XML SDK。
  2. 使用具有所需外观的最新Excel客户端创建Excel文件。将其命名为DesiredLook.xlsx
  3. 使用工具打开DesiredLook.xlsx并单击顶部附近的Reflect Code按钮。输入图片描述
  4. 您的文件的C#代码将在工具的右窗格中生成。将其添加到您的C#解决方案并生成具有所需外观的文件。

作为奖励,此方法适用于任何Word和PowerPoint文件。作为C#开发人员,您将对代码进行更改以满足您的需求。

为此,我开发了一个github上的简单WPF应用程序,它将在Windows上运行。有一个名为GeneratedClass的占位符类,您可以在其中粘贴生成的代码。如果您返回文件的一个版本,它将生成一个像这样的excel文件:

在此处输入图片描述

如果您从代码中制作数据表或datagridview,您可以使用这个简单的method.this方法保存所有数据,不建议使用,但它可以100%工作,即使您没有在计算机中安装MS Excel。

try{SaveFileDialog saveFileDialog1 = new SaveFileDialog();saveFileDialog1.Filter = "Excel Documents (*.xls)|*.xls";saveFileDialog1.FileName = "Employee Details.xls";if (saveFileDialog1.ShowDialog() == DialogResult.OK){string fname = saveFileDialog1.FileName;StreamWriter wr = new StreamWriter(fname);for (int i = 0; i <DataTable.Columns.Count; i++){wr.Write(DataTable.Columns[i].ToString().ToUpper() + "\t");}wr.WriteLine();
//write rows to excel filefor (int i = 0; i < (DataTable.Rows.Count); i++){for (int j = 0; j < DataTable.Columns.Count; j++){if (DataTable.Rows[i][j] != null){wr.Write(Convert.ToString(getallData.Rows[i][j]) + "\t");}else{wr.Write("\t");}}//go to next linewr.WriteLine();}//close filewr.Close();}}catch (Exception){MessageBox.Show("Error Create Excel Sheet!");}

前段时间,我在NPOI之上创建了一个DLL。使用它非常简单:

IList<DummyPerson> dummyPeople = new List<DummyPerson>();//Add data to dummyPeople...IExportEngine engine = new ExcelExportEngine();engine.AddData(dummyPeople);MemoryStream memory = engine.Export();

你可以在这里上阅读更多关于它的信息。

顺便说一句,是100%开源的。随意使用、编辑和分享;)

一个经常被忽视的非常简单的选择是使用微软报告创建. rdlc报告并将其导出为excel格式。您可以在Visual Studio中设计它并使用以下命令生成文件:

localReport.Render("EXCELOPENXML", null, ((name, ext, encoding, mimeType, willSeek) => stream = new FileStream(name, FileMode.CreateNew)), out warnings);

您还可以将其导出为. doc或. pdf,分别使用"WORDOPENXML""PDF",并且它在许多不同的平台上得到支持,例如ASP.NET和SSRS。

在可视化设计器中进行更改要容易得多,您可以在其中看到结果,并且相信我,一旦您开始对数据进行分组、格式化组标题、添加新部分,您就不会想弄乱几十个XML节点。

要将xls保存为xlsx格式,我们只需要从Microsoft.Office.Interop.Excel库调用SaveAs方法。此方法将采用大约16个参数,其中一个也是文件格式。

微软文档:这里SaveAs方法参数

我们需要传递的物体就像

wb.SaveAs(filename, 51, System.Reflection.Missing.Value,System.Reflection.Missing.Value, false, false, 1,1, true,System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value)

这里,51是XLSX的枚举值

对于不同文件格式的SaveAs,您可以参考xlFileFormat

无需第三方库,您可以使用此命令将可数据数据导出到excel文件

var dt = "your code for getting data into datatable";Response.ClearContent();Response.AddHeader("content-disposition", string.Format("attachment;filename={0}.xls", DateTime.Now.ToString("yyyy-MM-dd")));Response.ContentType = "application/vnd.ms-excel";string tab = "";foreach (DataColumn dataColumn in dt.Columns){Response.Write(tab + dataColumn.ColumnName);tab = "\t";}Response.Write("\n");int i;foreach (DataRow dataRow in dt.Rows){tab = "";for (i = 0; i < dt.Columns.Count; i++){Response.Write(tab + dataRow[i].ToString());tab = "\t";}Response.Write("\n");}Response.End();

如何在OneDrive上使用C#创建Excel(. xslx)文件,而无需安装Microsoft Office

microsoftGraph api提供了文件和Excel API,用于为企业和消费者帐户创建和修改存储在OneDrive中的Excel文件。微软图表 NuGet包提供了许多用于使用文件和Excel API的接口。

{Name = "myExcelFile.xslx",File = new Microsoft.Graph.File()};
// Create an empty file in the user's OneDrive.var excelWorkbookDriveItem = await graphClient.Me.Drive.Root.Children.Request().AddAsync(excelWorkbook);
// Add the contents of a template Excel file.DriveItem excelDriveItem;using (Stream ms = ResourceHelper.GetResourceAsStream(ResourceHelper.ExcelTestResource)){//Upload content to the file. ExcelTestResource is an empty template Excel file.//https://graph.microsoft.io/en-us/docs/api-reference/v1.0/api/item_uploadcontentexcelDriveItem = await graphClient.Me.Drive.Items[excelWorkbookDriveItem.Id].Content.Request().PutAsync<DriveItem>(ms);}

此时,您现在可以在用户(企业或消费者)或组的OneDrive中创建Excel文件。您现在可以使用Excelapi在不使用Excel且无需了解Excel XML格式的情况下更改Excel文件

你可以试试我的SwiftExcel库。这个库直接写入文件,所以它非常有效。例如,你可以在几秒钟内写入100k行,而不会占用任何内存。

下面是一个简单的用法示例:

using (var ew = new ExcelWriter("C:\\temp\\test.xlsx")){for (var row = 1; row <= 10; row++){for (var col = 1; col <= 5; col++){ew.Write($"row:{row}-col:{col}", col, row);}}}

您可以在Visual Studio上安装OpenXml nuget包。以下是将数据表导出到excel文件的代码:

Imports DocumentFormat.OpenXmlImports DocumentFormat.OpenXml.PackagingImports DocumentFormat.OpenXml.Spreadsheet
Public Class ExportExcelClassPublic Sub New()
End Sub
Public Sub ExportDataTable(ByVal table As DataTable, ByVal exportFile As String)' Create a spreadsheet document by supplying the filepath.' By default, AutoSave = true, Editable = true, and Type = xlsx.Dim spreadsheetDocument As SpreadsheetDocument = spreadsheetDocument.Create(exportFile, SpreadsheetDocumentType.Workbook)
' Add a WorkbookPart to the document.Dim workbook As WorkbookPart = spreadsheetDocument.AddWorkbookPartworkbook.Workbook = New Workbook
' Add a WorksheetPart to the WorkbookPart.Dim Worksheet As WorksheetPart = workbook.AddNewPart(Of WorksheetPart)()Worksheet.Worksheet = New Worksheet(New SheetData())
' Add Sheets to the Workbook.Dim sheets As Sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild(Of Sheets)(New Sheets())
Dim data As SheetData = Worksheet.Worksheet.GetFirstChild(Of SheetData)()Dim Header As Row = New Row()Header.RowIndex = CType(1, UInt32)
For Each column As DataColumn In table.ColumnsDim headerCell As Cell = createTextCell(table.Columns.IndexOf(column) + 1, 1, column.ColumnName)Header.AppendChild(headerCell)Next
data.AppendChild(Header)
Dim contentRow As DataRowFor i As Integer = 0 To table.Rows.Count - 1contentRow = table.Rows(i)data.AppendChild(createContentRow(contentRow, i + 2))Next
End Sub
Private Function createTextCell(ByVal columnIndex As Integer, ByVal rowIndex As Integer, ByVal cellValue As Object) As CellDim cell As Cell = New Cell()cell.DataType = CellValues.InlineString
cell.CellReference = getColumnName(columnIndex) + rowIndex.ToString
Dim inlineString As InlineString = New InlineString()Dim t As Text = New Text()t.Text = cellValue.ToString()inlineString.AppendChild(t)cell.AppendChild(inlineString)Return cellEnd Function
Private Function createContentRow(ByVal dataRow As DataRow, ByVal rowIndex As Integer) As RowDim row As Row = New Row With {.rowIndex = CType(rowIndex, UInt32)}
For i As Integer = 0 To dataRow.Table.Columns.Count - 1Dim dataCell As Cell = createTextCell(i + 1, rowIndex, dataRow(i))row.AppendChild(dataCell)Next
Return rowEnd Function
Private Function getColumnName(ByVal columnIndex As Integer) As StringDim dividend As Integer = columnIndexDim columnName As String = String.EmptyDim modifier As Integer
While dividend > 0modifier = (dividend - 1) Mod 26columnName = Convert.ToChar(65 + modifier).ToString() & columnNamedividend = CInt(((dividend - modifier) / 26))End While
Return columnNameEnd FunctionEnd Class

我想知道为什么没有人建议使用PowerShell与免费的IMIGExcel模块;它可以轻松创建XML-Excel文件(xlsx)。

特别容易当创建Excel表来自数据库,如SQL服务器…

我重新编码代码,现在您可以创建一个. xls文件,稍后您可以转换为Excel 2003 Open XML Format。

private static void exportToExcel(DataSet source, string fileName){// Documentacion en:// https://en.wikipedia.org/wiki/Microsoft_Office_XML_formats// https://answers.microsoft.com/en-us/msoffice/forum/all/how-to-save-office-ms-xml-as-xlsx-file/4a77dae5-6855-457d-8359-e7b537beb1db// https://riptutorial.com/es/openxml
const string startExcelXML = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n"+"<?mso-application progid=\"Excel.Sheet\"?>\r\n" +"<Workbook xmlns=\"urn:schemas-microsoft-com:office:spreadsheet\"\r\n" +"xmlns:o=\"urn:schemas-microsoft-com:office:office\"\r\n " +"xmlns:x=\"urn:schemas-microsoft-com:office:excel\"\r\n " +"xmlns:ss=\"urn:schemas-microsoft-com:office:spreadsheet\"\r\n " +"xmlns:html=\"http://www.w3.org/TR/REC-html40\">\r\n " +"xmlns:html=\"https://www.w3.org/TR/html401/\">\r\n " +
"<DocumentProperties xmlns=\"urn:schemas-microsoft-com:office:office\">\r\n " +"  <Version>16.00</Version>\r\n " +"</DocumentProperties>\r\n " +" <OfficeDocumentSettings xmlns=\"urn:schemas-microsoft-com:office:office\">\r\n " +"  <AllowPNG/>\r\n " +" </OfficeDocumentSettings>\r\n " +
" <ExcelWorkbook xmlns=\"urn:schemas-microsoft-com:office:excel\">\r\n " +"  <WindowHeight>9750</WindowHeight>\r\n " +"  <WindowWidth>24000</WindowWidth>\r\n " +"  <WindowTopX>0</WindowTopX>\r\n " +"  <WindowTopY>0</WindowTopY>\r\n " +"  <RefModeR1C1/>\r\n " +"  <ProtectStructure>False</ProtectStructure>\r\n " +"  <ProtectWindows>False</ProtectWindows>\r\n " +" </ExcelWorkbook>\r\n " +
"<Styles>\r\n " +"<Style ss:ID=\"Default\" ss:Name=\"Normal\">\r\n " +"<Alignment ss:Vertical=\"Bottom\"/>\r\n <Borders/>" +"\r\n <Font/>\r\n <Interior/>\r\n <NumberFormat/>" +"\r\n <Protection/>\r\n </Style>\r\n " +"<Style ss:ID=\"BoldColumn\">\r\n <Font " +"x:Family=\"Swiss\" ss:Bold=\"1\"/>\r\n </Style>\r\n " +"<Style ss:ID=\"StringLiteral\">\r\n <NumberFormat" +" ss:Format=\"@\"/>\r\n </Style>\r\n <Style " +"ss:ID=\"Decimal\">\r\n <NumberFormat " +"ss:Format=\"0.0000\"/>\r\n </Style>\r\n " +"<Style ss:ID=\"Integer\">\r\n <NumberFormat/>" +"ss:Format=\"0\"/>\r\n </Style>\r\n <Style " +"ss:ID=\"DateLiteral\">\r\n <NumberFormat " +"ss:Format=\"dd/mm/yyyy;@\"/>\r\n </Style>\r\n " +"</Styles>\r\n ";System.IO.StreamWriter excelDoc = null;excelDoc = new System.IO.StreamWriter(fileName,false);
int sheetCount = 1;excelDoc.Write(startExcelXML);foreach (DataTable table in source.Tables){int rowCount = 0;excelDoc.Write("<Worksheet ss:Name=\"" + table.TableName + "\">");excelDoc.Write("<Table>");excelDoc.Write("<Row>");for (int x = 0; x < table.Columns.Count; x++){excelDoc.Write("<Cell ss:StyleID=\"BoldColumn\"><Data ss:Type=\"String\">");excelDoc.Write(table.Columns[x].ColumnName);excelDoc.Write("</Data></Cell>");}excelDoc.Write("</Row>");foreach (DataRow x in table.Rows){rowCount++;//if the number of rows is > 64000 create a new page to continue outputif (rowCount == 1048576){rowCount = 0;sheetCount++;excelDoc.Write("</Table>");excelDoc.Write(" </Worksheet>");excelDoc.Write("<Worksheet ss:Name=\"" + table.TableName + "\">");excelDoc.Write("<Table>");}excelDoc.Write("<Row>"); //ID=" + rowCount + "for (int y = 0; y < table.Columns.Count; y++){System.Type rowType;rowType = x[y].GetType();switch (rowType.ToString()){case "System.String":string XMLstring = x[y].ToString();XMLstring = XMLstring.Trim();XMLstring = XMLstring.Replace("&", "&");XMLstring = XMLstring.Replace(">", ">");XMLstring = XMLstring.Replace("<", "<");excelDoc.Write("<Cell ss:StyleID=\"StringLiteral\">" +"<Data ss:Type=\"String\">");excelDoc.Write(XMLstring);excelDoc.Write("</Data></Cell>");break;case "System.DateTime"://Excel has a specific Date Format of YYYY-MM-DD followed by//the letter 'T' then hh:mm:sss.lll Example 2005-01-31T24:01:21.000//The Following Code puts the date stored in XMLDate//to the format aboveDateTime XMLDate = (DateTime)x[y];string XMLDatetoString = ""; //Excel Converted DateXMLDatetoString = XMLDate.Year.ToString() +"-" +(XMLDate.Month < 10 ? "0" +XMLDate.Month.ToString() : XMLDate.Month.ToString()) +"-" +(XMLDate.Day < 10 ? "0" +XMLDate.Day.ToString() : XMLDate.Day.ToString()) +"T" +(XMLDate.Hour < 10 ? "0" +XMLDate.Hour.ToString() : XMLDate.Hour.ToString()) +":" +(XMLDate.Minute < 10 ? "0" +XMLDate.Minute.ToString() : XMLDate.Minute.ToString()) +":" +(XMLDate.Second < 10 ? "0" +XMLDate.Second.ToString() : XMLDate.Second.ToString()) +".000";excelDoc.Write("<Cell ss:StyleID=\"DateLiteral\">" +"<Data ss:Type=\"DateTime\">");excelDoc.Write(XMLDatetoString);excelDoc.Write("</Data></Cell>");break;case "System.Boolean":excelDoc.Write("<Cell ss:StyleID=\"StringLiteral\">" +"<Data ss:Type=\"String\">");excelDoc.Write(x[y].ToString());excelDoc.Write("</Data></Cell>");break;case "System.Int16":case "System.Int32":case "System.Int64":case "System.Byte":excelDoc.Write("<Cell ss:StyleID=\"Integer\">" +"<Data ss:Type=\"Number\">");excelDoc.Write(x[y].ToString());excelDoc.Write("</Data></Cell>");break;case "System.Decimal":case "System.Double":excelDoc.Write("<Cell ss:StyleID=\"Decimal\">" +"<Data ss:Type=\"Number\">");excelDoc.Write(x[y].ToString());excelDoc.Write("</Data></Cell>");break;case "System.DBNull":excelDoc.Write("<Cell ss:StyleID=\"StringLiteral\">" +"<Data ss:Type=\"String\">");excelDoc.Write("");excelDoc.Write("</Data></Cell>");break;default:throw (new Exception(rowType.ToString() + " not handled."));}}excelDoc.Write("</Row>");}excelDoc.Write("</Table>");excelDoc.Write("</Worksheet>");sheetCount++;}
const string endExcelOptions1 = "\r\n<WorksheetOptions xmlns=\"urn:schemas-microsoft-com:office:excel\">\r\n" +"<Selected/>\r\n" +"<ProtectObjects>False</ProtectObjects>\r\n" +"<ProtectScenarios>False</ProtectScenarios>\r\n" +"</WorksheetOptions>\r\n";
excelDoc.Write(endExcelOptions1);excelDoc.Write("</Workbook>");excelDoc.Close();}

在我的项目中,我使用一些. net库来提取Excel文件(. xls和. xlsx)

要导出数据,我经常使用rdlc

要修改我使用的excel文件(尝试设置空白Cell A15时的示例代码):

ClosedXML

        //Closed XMLvar workbook = new XLWorkbook(sUrlFile); // load the existing excel filevar worksheet = workbook.Worksheets.Worksheet(1);worksheet.Cell("A15").SetValue("");workbook.Save();

ironXL

       string sUrlFile = "G:\\ReportAmortizedDetail.xls";WorkBook workbook = WorkBook.Load(sUrlFile);WorkSheet sheet = workbook.WorkSheets.First();//Select cells easily in Excel notation and return the calculated valuesheet["A15"].First().Value = "";sheet["A15"].First().FormatString = "";
workbook.Save();workbook.Close();workbook = null;

SpireXLS(当我尝试时,库打印附加表以提供我们使用试用库的信息

            string sUrlFile = "G:\\ReportAmortizedDetail.xls";Workbook workbook = new Workbook();workbook.LoadFromFile(sUrlFile);//Get the 1st sheetWorksheet sheet = workbook.Worksheets[0];//Specify the cell rangeCellRange range = sheet.Range["A15"];//Find all matched text in the rangeCellRange[] cells = range.FindAllString("hi", false, false);//Replace textforeach (CellRange cell in range){cell.Text = "";}//Saveworkbook.Save();

jetoledb

    //ExcelTool Classpublic static int ExcelUpdateSheets(string path, string sWorksheetName, string sCellLocation, string sValue){int iResult = -99;String sConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties='Excel 8.0;HDR=NO'";OleDbConnection objConn = new OleDbConnection(sConnectionString);objConn.Open();OleDbCommand objCmdSelect = new OleDbCommand("UPDATE [" + sWorksheetName + "$" + sCellLocation + "] SET F1=" + UtilityClass.ValueSQL(sValue), objConn);objCmdSelect.ExecuteNonQuery();objConn.Close();
return iResult;}

用法:

    ExcelTool.ExcelUpdateSheets(sUrlFile, "ReportAmortizedDetail", "A15:A15", "");

Aspose

            var workbook = new Aspose.Cells.Workbook(sUrlFile);// access first (default) worksheetvar sheet = workbook.Worksheets[0];// access CellsCollection of first worksheetvar cells = sheet.Cells;// write HelloWorld to cells A1cells["A15"].Value = "";// save spreadsheet to discworkbook.Save(sUrlFile);workbook.Dispose();workbook = null;

这是创建Excel文件的最简单方法。

扩展名为. xlsx的Excel文件是包含. XML文件的压缩文件夹-但很复杂。

首先创建文件夹结构如下-

public class CreateFileOrFolder{static void Main(){//// https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/file-system/how-to-create-a-file-or-folder//// https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/file-system/how-to-write-to-a-text-file//// .NET Framework 4.7.2//// Specify a name for your top-level folder.string folderName = @"C:\Users\david\Desktop\Book3";
// To create a string that specifies the path to a subfolder under your// top-level folder, add a name for the subfolder to folderName.
string pathString = System.IO.Path.Combine(folderName, "_rels");System.IO.Directory.CreateDirectory(pathString);pathString = System.IO.Path.Combine(folderName, "docProps");System.IO.Directory.CreateDirectory(pathString);pathString = System.IO.Path.Combine(folderName, "xl");System.IO.Directory.CreateDirectory(pathString);
string subPathString = System.IO.Path.Combine(pathString, "_rels");System.IO.Directory.CreateDirectory(subPathString);subPathString = System.IO.Path.Combine(pathString, "theme");System.IO.Directory.CreateDirectory(subPathString);subPathString = System.IO.Path.Combine(pathString, "worksheets");System.IO.Directory.CreateDirectory(subPathString);// Keep the console window open in debug mode.System.Console.WriteLine("Press any key to exit.");System.Console.ReadKey();}}

接下来,创建文本文件以保存描述Excel电子表格所需的XML。

namespace MakeFiles3{class Program{static void Main(string[] args){//// https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/file-system/how-to-write-to-a-text-file//// .NET Framework 4.7.2//string fileName = @"C:\Users\david\Desktop\Book3\_rels\.rels";fnWriteFile(fileName);fileName = @"C:\Users\david\Desktop\Book3\docProps\app.xml";fnWriteFile(fileName);fileName = @"C:\Users\david\Desktop\Book3\docProps\core.xml";fnWriteFile(fileName);fileName = @"C:\Users\david\Desktop\Book3\xl\_rels\workbook.xml.rels";fnWriteFile(fileName);fileName = @"C:\Users\david\Desktop\Book3\xl\theme\theme1.xml";fnWriteFile(fileName);fileName = @"C:\Users\david\Desktop\Book3\xl\worksheets\sheet1.xml";fnWriteFile(fileName);fileName = @"C:\Users\david\Desktop\Book3\xl\styles.xml";fnWriteFile(fileName);fileName = @"C:\Users\david\Desktop\Book3\xl\workbook.xml";fnWriteFile(fileName);fileName = @"C:\Users\david\Desktop\Book3\[Content_Types].xml";fnWriteFile(fileName);// Keep the console window open in debug mode.System.Console.WriteLine("Press any key to exit.");System.Console.ReadKey();
bool fnWriteFile(string strFilePath){if (!System.IO.File.Exists(strFilePath)){using (System.IO.FileStream fs = System.IO.File.Create(strFilePath)){return true;}}else{System.Console.WriteLine("File \"{0}\" already exists.", strFilePath);return false;}}}}}

接下来用XML填充文本文件。

所需的XML相当冗长,因此您可能需要使用此github存储库。

https://github.com/DaveTallett26/MakeFiles4/blob/master/MakeFiles4/Program.cs

//// https://learn.microsoft.com/en-us/dotnet/standard/io/how-to-write-text-to-a-file// .NET Framework 4.7.2//using System.IO;
namespace MakeFiles4{class Program{static void Main(string[] args){string xContents = @"a";string xFilename = @"a";xFilename = @"C:\Users\david\Desktop\Book3\[Content_Types].xml";xContents = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?><Types xmlns=""http://schemas.openxmlformats.org/package/2006/content-types""><Default Extension=""rels"" ContentType=""application/vnd.openxmlformats-package.relationships+xml""/><Default Extension=""xml"" ContentType=""application/xml""/><Override PartName=""/xl/workbook.xml"" ContentType=""application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml""/><Override PartName=""/xl/worksheets/sheet1.xml"" ContentType=""application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml""/><Override PartName=""/xl/theme/theme1.xml"" ContentType=""application/vnd.openxmlformats-officedocument.theme+xml""/><Override PartName=""/xl/styles.xml"" ContentType=""application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml""/><Override PartName=""/docProps/core.xml"" ContentType=""application/vnd.openxmlformats-package.core-properties+xml""/><Override PartName=""/docProps/app.xml"" ContentType=""application/vnd.openxmlformats-officedocument.extended-properties+xml""/></Types>";StartExstream(xContents, xFilename);
xFilename = @"C:\Users\david\Desktop\Book3\_rels\.rels";xContents = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?><Relationships xmlns=""http://schemas.openxmlformats.org/package/2006/relationships""><Relationship Id=""rId3"" Type=""http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties"" Target=""docProps/app.xml""/><Relationship Id=""rId2"" Type=""http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties"" Target=""docProps/core.xml""/><Relationship Id=""rId1"" Type=""http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument"" Target=""xl/workbook.xml""/></Relationships>";StartExstream(xContents, xFilename);
xFilename = @"C:\Users\david\Desktop\Book3\docProps\app.xml";xContents = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?><Properties xmlns=""http://schemas.openxmlformats.org/officeDocument/2006/extended-properties"" xmlns:vt=""http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes""><Application>Microsoft Excel</Application><DocSecurity>0</DocSecurity><ScaleCrop>false</ScaleCrop><HeadingPairs><vt:vector size=""2"" baseType=""variant""><vt:variant><vt:lpstr>Worksheets</vt:lpstr></vt:variant><vt:variant><vt:i4>1</vt:i4></vt:variant></vt:vector></HeadingPairs><TitlesOfParts><vt:vector size=""1"" baseType=""lpstr""><vt:lpstr>Sheet1</vt:lpstr></vt:vector></TitlesOfParts><Company></Company><LinksUpToDate>false</LinksUpToDate><SharedDoc>false</SharedDoc><HyperlinksChanged>false</HyperlinksChanged><AppVersion>16.0300</AppVersion></Properties>";StartExstream(xContents, xFilename);
xFilename = @"C:\Users\david\Desktop\Book3\docProps\core.xml";xContents = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?><cp:coreProperties xmlns:cp=""http://schemas.openxmlformats.org/package/2006/metadata/core-properties"" xmlns:dc=""http://purl.org/dc/elements/1.1/"" xmlns:dcterms=""http://purl.org/dc/terms/"" xmlns:dcmitype=""http://purl.org/dc/dcmitype/"" xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance""><dc:creator>David Tallett</dc:creator><cp:lastModifiedBy>David Tallett</cp:lastModifiedBy><dcterms:created xsi:type=""dcterms:W3CDTF"">2021-10-26T15:47:15Z</dcterms:created><dcterms:modified xsi:type=""dcterms:W3CDTF"">2021-10-26T15:47:35Z</dcterms:modified></cp:coreProperties>";StartExstream(xContents, xFilename);
xFilename = @"C:\Users\david\Desktop\Book3\xl\styles.xml";xContents = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?><styleSheet xmlns=""http://schemas.openxmlformats.org/spreadsheetml/2006/main"" xmlns:mc=""http://schemas.openxmlformats.org/markup-compatibility/2006"" mc:Ignorable=""x14ac x16r2 xr"" xmlns:x14ac=""http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac"" xmlns:x16r2=""http://schemas.microsoft.com/office/spreadsheetml/2015/02/main"" xmlns:xr=""http://schemas.microsoft.com/office/spreadsheetml/2014/revision""><fonts count=""1"" x14ac:knownFonts=""1""><font><sz val=""11""/><color theme=""1""/><name val=""Calibri""/><family val=""2""/><scheme val=""minor""/></font></fonts><fills count=""2""><fill><patternFill patternType=""none""/></fill><fill><patternFill patternType=""gray125""/></fill></fills><borders count=""1""><border><left/><right/><top/><bottom/><diagonal/></border></borders><cellStyleXfs count=""1""><xf numFmtId=""0"" fontId=""0"" fillId=""0"" borderId=""0""/></cellStyleXfs><cellXfs count=""1""><xf numFmtId=""0"" fontId=""0"" fillId=""0"" borderId=""0"" xfId=""0""/></cellXfs><cellStyles count=""1""><cellStyle name=""Normal"" xfId=""0"" builtinId=""0""/></cellStyles><dxfs count=""0""/><tableStyles count=""0"" defaultTableStyle=""TableStyleMedium2"" defaultPivotStyle=""PivotStyleLight16""/><extLst><ext uri=""{EB79DEF2-80B8-43e5-95BD-54CBDDF9020C}"" xmlns:x14=""http://schemas.microsoft.com/office/spreadsheetml/2009/9/main""><x14:slicerStyles defaultSlicerStyle=""SlicerStyleLight1""/></ext><ext uri=""{9260A510-F301-46a8-8635-F512D64BE5F5}"" xmlns:x15=""http://schemas.microsoft.com/office/spreadsheetml/2010/11/main""><x15:timelineStyles defaultTimelineStyle=""TimeSlicerStyleLight1""/></ext></extLst></styleSheet>";StartExstream(xContents, xFilename);
xFilename = @"C:\Users\david\Desktop\Book3\xl\workbook.xml";xContents = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?><workbook xmlns=""http://schemas.openxmlformats.org/spreadsheetml/2006/main"" xmlns:r=""http://schemas.openxmlformats.org/officeDocument/2006/relationships"" xmlns:mc=""http://schemas.openxmlformats.org/markup-compatibility/2006"" mc:Ignorable=""x15 xr xr6 xr10 xr2"" xmlns:x15=""http://schemas.microsoft.com/office/spreadsheetml/2010/11/main"" xmlns:xr=""http://schemas.microsoft.com/office/spreadsheetml/2014/revision"" xmlns:xr6=""http://schemas.microsoft.com/office/spreadsheetml/2016/revision6"" xmlns:xr10=""http://schemas.microsoft.com/office/spreadsheetml/2016/revision10"" xmlns:xr2=""http://schemas.microsoft.com/office/spreadsheetml/2015/revision2""><fileVersion appName=""xl"" lastEdited=""7"" lowestEdited=""7"" rupBuild=""24430""/><workbookPr defaultThemeVersion=""166925""/><mc:AlternateContent xmlns:mc=""http://schemas.openxmlformats.org/markup-compatibility/2006""><mc:Choice Requires=""x15""><x15ac:absPath url=""C:\Users\david\Desktop\"" xmlns:x15ac=""http://schemas.microsoft.com/office/spreadsheetml/2010/11/ac""/></mc:Choice></mc:AlternateContent><xr:revisionPtr revIDLastSave=""0"" documentId=""8_{C633700D-2D40-49EE-8C5E-2561E28A6758}"" xr6:coauthVersionLast=""47"" xr6:coauthVersionMax=""47"" xr10:uidLastSave=""{00000000-0000-0000-0000-000000000000}""/><bookViews><workbookView xWindow=""-120"" yWindow=""-120"" windowWidth=""29040"" windowHeight=""15840"" xr2:uid=""{934C5B62-1DC1-4322-BAE8-00D615BD2FB3}""/></bookViews><sheets><sheet name=""Sheet1"" sheetId=""1"" r:id=""rId1""/></sheets><calcPr calcId=""191029""/><extLst><ext uri=""{140A7094-0E35-4892-8432-C4D2E57EDEB5}"" xmlns:x15=""http://schemas.microsoft.com/office/spreadsheetml/2010/11/main""><x15:workbookPr chartTrackingRefBase=""1""/></ext><ext uri=""{B58B0392-4F1F-4190-BB64-5DF3571DCE5F}"" xmlns:xcalcf=""http://schemas.microsoft.com/office/spreadsheetml/2018/calcfeatures""><xcalcf:calcFeatures><xcalcf:feature name=""microsoft.com:RD""/><xcalcf:feature name=""microsoft.com:Single""/><xcalcf:feature name=""microsoft.com:FV""/><xcalcf:feature name=""microsoft.com:CNMTM""/><xcalcf:feature name=""microsoft.com:LET_WF""/></xcalcf:calcFeatures></ext></extLst></workbook>";StartExstream(xContents, xFilename);
xFilename = @"C:\Users\david\Desktop\Book3\xl\_rels\workbook.xml.rels";xContents = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?><Relationships xmlns=""http://schemas.openxmlformats.org/package/2006/relationships""><Relationship Id=""rId3"" Type=""http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles"" Target=""styles.xml""/><Relationship Id=""rId2"" Type=""http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme"" Target=""theme/theme1.xml""/><Relationship Id=""rId1"" Type=""http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet"" Target=""worksheets/sheet1.xml""/></Relationships>";StartExstream(xContents, xFilename);
xFilename = @"C:\Users\david\Desktop\Book3\xl\theme\theme1.xml";xContents = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?><a:theme xmlns:a=""http://schemas.openxmlformats.org/drawingml/2006/main"" name=""Office Theme""><a:themeElements><a:clrScheme name=""Office""><a:dk1><a:sysClr val=""windowText"" lastClr=""000000""/></a:dk1><a:lt1><a:sysClr val=""window"" lastClr=""FFFFFF""/></a:lt1><a:dk2><a:srgbClr val=""44546A""/></a:dk2><a:lt2><a:srgbClr val=""E7E6E6""/></a:lt2><a:accent1><a:srgbClr val=""4472C4""/></a:accent1><a:accent2><a:srgbClr val=""ED7D31""/></a:accent2><a:accent3><a:srgbClr val=""A5A5A5""/></a:accent3><a:accent4><a:srgbClr val=""FFC000""/></a:accent4><a:accent5><a:srgbClr val=""5B9BD5""/></a:accent5><a:accent6><a:srgbClr val=""70AD47""/></a:accent6><a:hlink><a:srgbClr val=""0563C1""/></a:hlink><a:folHlink><a:srgbClr val=""954F72""/></a:folHlink></a:clrScheme><a:fontScheme name=""Office""><a:majorFont><a:latin typeface=""Calibri Light"" panose=""020F0302020204030204""/><a:ea typeface=""""/><a:cs typeface=""""/><a:font script=""Jpan"" typeface=""游ゴシック Light""/><a:font script=""Hang"" typeface=""맑은 고딕""/><a:font script=""Hans"" typeface=""等线 Light""/><a:font script=""Hant"" typeface=""新細明體""/><a:font script=""Arab"" typeface=""Times New Roman""/><a:font script=""Hebr"" typeface=""Times New Roman""/><a:font script=""Thai"" typeface=""Tahoma""/><a:font script=""Ethi"" typeface=""Nyala""/><a:font script=""Beng"" typeface=""Vrinda""/><a:font script=""Gujr"" typeface=""Shruti""/><a:font script=""Khmr"" typeface=""MoolBoran""/><a:font script=""Knda"" typeface=""Tunga""/><a:font script=""Guru"" typeface=""Raavi""/><a:font script=""Cans"" typeface=""Euphemia""/><a:font script=""Cher"" typeface=""Plantagenet Cherokee""/><a:font script=""Yiii"" typeface=""Microsoft Yi Baiti""/><a:font script=""Tibt"" typeface=""Microsoft Himalaya""/><a:font script=""Thaa"" typeface=""MV Boli""/><a:font script=""Deva"" typeface=""Mangal""/><a:font 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xFilename = @"C:\Users\david\Desktop\Book3\xl\worksheets\sheet1.xml";xContents = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?><worksheet xmlns=""http://schemas.openxmlformats.org/spreadsheetml/2006/main"" xmlns:r=""http://schemas.openxmlformats.org/officeDocument/2006/relationships"" xmlns:mc=""http://schemas.openxmlformats.org/markup-compatibility/2006"" mc:Ignorable=""x14ac xr xr2 xr3"" xmlns:x14ac=""http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac"" xmlns:xr=""http://schemas.microsoft.com/office/spreadsheetml/2014/revision"" xmlns:xr2=""http://schemas.microsoft.com/office/spreadsheetml/2015/revision2"" xmlns:xr3=""http://schemas.microsoft.com/office/spreadsheetml/2016/revision3"" xr:uid=""{54E3D330-4E78-4755-89E0-1AADACAC4953}""><dimension ref=""A1:A3""/><sheetViews><sheetView tabSelected=""1"" workbookViewId=""0""><selection activeCell=""A4"" sqref=""A4""/></sheetView></sheetViews><sheetFormatPr defaultRowHeight=""15"" x14ac:dyDescent=""0.25""/><sheetData><row r=""1"" spans=""1:1"" x14ac:dyDescent=""0.25""><c r=""A1""><v>1</v></c></row><row r=""2"" spans=""1:1"" x14ac:dyDescent=""0.25""><c r=""A2""><v>2</v></c></row><row r=""3"" spans=""1:1"" x14ac:dyDescent=""0.25""><c r=""A3""><v>3</v></c></row></sheetData><pageMargins left=""0.7"" right=""0.7"" top=""0.75"" bottom=""0.75"" header=""0.3"" footer=""0.3""/></worksheet>";StartExstream(xContents, xFilename);
// Keep the console window open in debug mode.System.Console.WriteLine("Press any key to exit.");System.Console.ReadKey();
bool StartExstream(string strLine, string strFileName){// Write the string to a file.using (StreamWriter outputFile = new StreamWriter(strFileName)){outputFile.WriteLine(strLine);return true;}}}}}

最后ZIP包含XML的文件夹结构-

namespace ZipFolder// .NET Framework 4.7.2// https://stackoverflow.com/questions/15241889/i-didnt-find-zipfile-class-in-the-system-io-compression-namespace?answertab=votes#tab-top{class Program{static void Main(string[] args){string xlPath = @"C:\Users\david\Desktop\Book3.xlsx";string folderPath = @"C:\Users\david\Desktop\Book3";
System.IO.Compression.ZipFile.CreateFromDirectory(folderPath, xlPath);
// Keep the console window open in debug mode.System.Console.WriteLine("Press any key to exit.");System.Console.ReadKey();}}}

这将生成一个名为Book3.xlsx的Excel文件,该文件有效并在Windows 11上的Excel 365中干净打开。

结果是一个非常简单的Excel电子表格,但您可能需要对更复杂的版本进行逆向工程。这是解压. xlsx文件的代码。

namespace UnZipXL// .NET Framework 4.7.2// https://stackoverflow.com/questions/15241889/i-didnt-find-zipfile-class-in-the-system-io-compression-namespace?answertab=votes#tab-top{class Program{static void Main(string[] args){string XLPath = @"C:\Users\david\Desktop\Book2.xlsx";string extractPath = @"C:\Users\david\Desktop\extract";
System.IO.Compression.ZipFile.ExtractToDirectory(XLPath, extractPath);
// Keep the console window open in debug mode.System.Console.WriteLine("Press any key to exit.");System.Console.ReadKey();}}}

更新时间:

这是一个更新Excel文件的代码片段。这再次非常简单。

//// https://learn.microsoft.com/en-us/dotnet/standard/io/how-to-write-text-to-a-file// .NET Framework 4.7.2//using System.IO;
namespace UpdateWorksheet5{class Program{static void Main(string[] args){string xContents = @"a";string xFilename = @"a";
xFilename = @"C:\Users\david\Desktop\Book3\xl\worksheets\sheet1.xml";xContents = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?><worksheet xmlns=""http://schemas.openxmlformats.org/spreadsheetml/2006/main"" xmlns:r=""http://schemas.openxmlformats.org/officeDocument/2006/relationships"" xmlns:mc=""http://schemas.openxmlformats.org/markup-compatibility/2006"" mc:Ignorable=""x14ac xr xr2 xr3"" xmlns:x14ac=""http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac"" xmlns:xr=""http://schemas.microsoft.com/office/spreadsheetml/2014/revision"" xmlns:xr2=""http://schemas.microsoft.com/office/spreadsheetml/2015/revision2"" xmlns:xr3=""http://schemas.microsoft.com/office/spreadsheetml/2016/revision3"" xr:uid=""{54E3D330-4E78-4755-89E0-1AADACAC4953}""><dimension ref=""A1:A3""/><sheetViews><sheetView tabSelected=""1"" workbookViewId=""0""><selection activeCell=""A4"" sqref=""A4""/></sheetView></sheetViews><sheetFormatPr defaultRowHeight=""15"" x14ac:dyDescent=""0.25""/><sheetData><row r=""1"" spans=""1:1"" x14ac:dyDescent=""0.25""><c r=""A1""><v>1</v></c></row><row r=""2"" spans=""1:1"" x14ac:dyDescent=""0.25""><c r=""A2""><v>2</v></c></row><row r=""3"" spans=""1:1"" x14ac:dyDescent=""0.25""><c r=""A3""><v>3</v></c></row></sheetData><pageMargins left=""0.7"" right=""0.7"" top=""0.75"" bottom=""0.75"" header=""0.3"" footer=""0.3""/></worksheet>";xContents = xContents.Remove(941, 1).Insert(941, "0"); //  character to replace is at 942 => index 941StartExstream(xContents, xFilename);
// Keep the console window open in debug mode.System.Console.WriteLine("Press any key to exit.");System.Console.ReadKey();
bool StartExstream(string strLine, string strFileName){// Write the string to a file.using (StreamWriter outputFile = new StreamWriter(strFileName)){outputFile.WriteLine(strLine);return true;}}}}}

更新2-除Mac上的文件夹路径外,此代码几乎不变。使用Microsoft Excel Online、. NET Framework 3.1、Visual Studio 2019 for Mac、MacOS Monterey 12.1。

我找到了另一个没有太多依赖项的库:MiniExcel

您可以使用DataTable作为电子表格(表的名称是电子表格的名称)创建DataSet并将其保存到.xlsx文件

using var stream = File.Create(filePath);stream.SaveAs(dataSet);

MiniExcel.SaveAs(filePath, dataSet);

它还提供Excel文件的读取,并支持读取和写入CSV文件。