创buildxlsx文件
我基本上是创build一个xlsx文件，但使用下面的文件时，我得到一个错误。
System.IO.FileFormatException：存档文件不能大小为0。
我尝试的方式。
string file = "c:\\DoneDone61.xlsx"; using(File.Create(file)) { } 另外我无法手动打开excel文件，因为它说文件已损坏。
提前感谢您的答复。
一个你认为是“空白”的Excel文件不仅仅是一个没有数据的文件（这就是你正在创build的）。 你可以在Excel中手动创build一个文档，然后在记事本中打开它。 你会注意到它里面实际上有数据。 该数据用于存储关于名为“Sheet1”，“Sheet2”和“Sheet3”的三张空白页的信息。 此外，还有一些标题信息，以便任何查看该文件的程序知道它实际上是一个压缩文件（按照Excel文件格式）。 所以，正如你所看到的，即使是一个非常空的excel文件仍然包含SOME数据。
如果你想用C＃创build一个空白的Excel文档，你有两个好的select：
- 使用一个库，可以让你实际上创buildExcel文档，正确地创build文件。 看看像Microsoft OpenXML SDK或ExcelPackage 。
- 创build一个空的Excel文档，将其存储在某个地方，当您想“创build”一个新的空Excel文档时，只需复制一份该文件。
这个 …
using(File.Create(filePath)) { }
…创build一个空文件。 阅读： 真的是空的（=> 0字节 ）不是一个XLSX框架的空XLSX：ZIP容器，文件头，样式定义….
你期望什么？
编辑：如果你想创build一个空的XLSX文件（如“右键单击鼠标>新build>新的Microsoft Excel”），你必须使用这样的模板，…并将其写入到磁盘上。
为此，您必须将该模板文件与您的应用程序一起部署，然后执行File.Copy(source, dest) ，或将其作为资源集成并将资源内容写入磁盘。
你需要使用的是Interop.Excel命名空间。 这里是msdn的指南
请使用这个…它有点hacky，但不能得到一个更好的方式来使用InterOp做到这一点
public static void CreateEmptyXLSXFile(string FilePath) { FileStream MyStream = new FileStream(FilePath, FileMode.CreateNew, FileAccess.ReadWrite); MyStream.Write(ExcelDocumentsInterOps.GetEmptyXSLXFileBytes(), 0, ExcelDocumentsInterOps.GetEmptyXSLXFileBytes().Length); MyStream.Flush(); MyStream.Close(); MyStream.Dispose(); MyStream = null; } /// <summary> /// Returns the bytes for an empty xslx file /// </summary> /// <returns></returns> public static byte[] GetEmptyXSLXFileBytes() { string TheSting = 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return Convert.FromBase64String(TheSting); }
在.NET中处理电子表格相关的任务时，可以使用这个名为SpreadsheetLight的 开源库来编写一个excel文件（特别是如果你想在某个时候写内容的话）。
如果你喜欢通过Nuget把它添加为包，你可以说：
安装包SpreadsheetLight
之后，通过GenerateReport（）例如 ：
// this one creates an empty workbook using (SLDocument sl = new SLDocument()) { // sl.SetCellValue("B3", "I love ASP.NET MVC"); sl.SaveAs("c:\\DoneDone61.xlsx"); }
另请参阅他们的教程更有趣的东西。