这里介绍一个很方便实用的库：Magicodes.IE，导入导出通用库，通过导入导出DTO模型来控制导入和导出，支持Excel、Word、Pdf和Html。

本篇介绍基本使用方法，使用方法非常简单，不需要学习npoi的应用。

在vs中，新建一个控制台项目（测试用，可以建其他项目，比如asp.net mvc ,winform都可以）

右键单击项目中的引用，选择nuget包管理，导入nuget包：这里只使用excel，所以只导入了Magicodes.IE.Excel

1.  
   Magicodes.IE.Core
2.  
   Magicodes.IE.Excel
3.  
   Magicodes.IE.Pdf
4.  
   Magicodes.IE.Word
5.  
   Magicodes.IE.Html

1. 首先准备好一个类，这个类包含需要导出的属性一、导出数据

1.  
   public class Question
2.  
   {
3.  
   public string Title { get; set; }
4.  
   public string Content { get; set; }
5.  
   public string Options { get; set; }
6.  
   public string Answer { get; set; }
7.  
   }

2.导出方法

这里如果new List<Question>()不设置数据，就可以直接导出Question的模板

1.  
   static void ExportQuestion()
2.  
   {
3.  
   //这里需要补充，如果路径不存在要创建路径，否则会报错
4.  
   var filePath = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles", "question.xlsx");
5.  
   var exporter = new ExcelExporter();
6.  
   var result = exporter.Export(filePath, new List<Question>() {
7.  
   new Question()
8.  
   {
9.  
   Title = "Question1",
10.  
    Content = "Question content 1",
11.  
    Options = "A:option1,B:option2,C:option3,D:option4",
12.  
    Answer = "A",
13.  
    },
14.  
    new Question()
15.  
    {
16.  
    Title = "Question2",
17.  
    Content = "Question content 2",
18.  
    Options = "A:option11,B:option22,C:option33,D:option43",
19.  
    Answer = "B",
20.  
    }
21.  
    });
22.  
    }

其他方法参考下代码吧：

1.  
   using Magicodes.ExporterAndImporter.Core;
2.  
   using Magicodes.ExporterAndImporter.Excel;
3.  
   using Magicodes.ExporterAndImporter.Excel.Builder;
4.  
   using System;
5.  
   using System.Collections.Generic;
6.  
   using System.ComponentModel.DataAnnotations;
7.  
   using System.IO;
8.  
   using System.Text;
9.  
   using System.Threading.Tasks;
10.  
     
11.  
    namespace Test
12.  
    {
13.  
    class Program
14.  
    {
15.  
    //static void Main(string[] args)
16.  
    static async Task Main(string[] args)
17.  
    {
18.  
    await Import3();
19.  
    Console.WriteLine("Hello World!");
20.  
    }
21.  
     
22.  
    #region 导出excel demo
23.  
     
24.  
    /// <summary>
25.  
    /// 导出excel测试：excel1
26.  
    /// </summary>
27.  
    static void Demo1()
28.  
    {
29.  
    //这里需要补充，如果路径不存在要创建路径，否则会报错
30.  
    var filePath = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles", "demo1.xlsx");
31.  
    var exporter = new ExcelExporter();
32.  
    var result = exporter.Export(filePath, new List<ExportTestData>() {
33.  
    new ExportTestData()
34.  
    {
35.  
    Name1 = "1",
36.  
    Name2 = "test",
37.  
    Name3 = "12",
38.  
    Name4 = "11",
39.  
    },
40.  
    new ExportTestData()
41.  
    {
42.  
    Name1 = "1",
43.  
    Name2 = "test",
44.  
    Name3 = "12",
45.  
    Name4 = "11",
46.  
    }
47.  
    });
48.  
    }
49.  
     
50.  
    static void ExportQuestion()
51.  
    {
52.  
    //这里需要补充，如果路径不存在要创建路径，否则会报错
53.  
    var filePath = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles", "question.xlsx");
54.  
    var exporter = new ExcelExporter();
55.  
    var result = exporter.Export(filePath, new List<Question>() {
56.  
    new Question()
57.  
    {
58.  
    Title = "Question1",
59.  
    Content = "Question content 1",
60.  
    Options = "A:option1,B:option2,C:option3,D:option4",
61.  
    Answer = "A",
62.  
    },
63.  
    new Question()
64.  
    {
65.  
    Title = "Question2",
66.  
    Content = "Question content 2",
67.  
    Options = "A:option11,B:option22,C:option33,D:option43",
68.  
    Answer = "B",
69.  
    }
70.  
    });
71.  
    }
72.  
     
73.  
    /// <summary>
74.  
    /// 导出空模板测试：excel11
75.  
    /// </summary>
76.  
    static void Demo11()
77.  
    {
78.  
    //这里需要补充，如果路径不存在要创建路径，否则会报错
79.  
    var filePath = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles", "ImportProduct2Dto.xlsx");
80.  
    var exporter = new ExcelExporter();
81.  
    var result = exporter.Export(filePath, new List<ImportProduct2Dto>());
82.  
    }
83.  
     
84.  
     
85.  
    /// <summary>
86.  
    /// 利用特性导出excel2
87.  
    /// </summary>
88.  
    static void Demo2()
89.  
    {
90.  
    var filePath = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles", "demo2.xlsx");
91.  
    ExcelExporter exporter = new ExcelExporter();
92.  
    var result = exporter.Export(filePath, new List<ExportTestDataWithAttrs>()
93.  
    {
94.  
    new ExportTestDataWithAttrs()
95.  
    {
96.  
    Text1 = "啊实打实大苏打撒",
97.  
    Name="aa",
98.  
    Number =5000,
99.  
    Text2 = "w萨达萨达萨达撒",
100.  
     Text3 = "sadsad打发打发士大夫的"
101.  
     },
102.  
     new ExportTestDataWithAttrs()
103.  
     {
104.  
     Text1 = "啊实打实大苏打撒",
105.  
     Name="啊实打实大苏打撒",
106.  
     Number =6000,
107.  
     Text2 = "w萨达萨达萨达撒",
108.  
     Text3 = "sadsad打发打发士大夫的"
109.  
     },
110.  
     new ExportTestDataWithAttrs()
111.  
     {
112.  
     Text1 = "啊实打实速度大苏打撒",
113.  
     Name="萨达萨达",
114.  
     Number =6000,
115.  
     Text2 = "突然他也让他人",
116.  
     Text3 = "sadsad打发打发士大夫的"
117.  
     },
118.  
     });
119.  
     }
120.  
      
121.  
     /// <summary>
122.  
     /// 列头处理或者多语言支持测试
123.  
     /// </summary>
124.  
     static void Demo3()
125.  
     {
126.  
     var filePath = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles","testAttrsLocalization.xlsx");
127.  
     if (File.Exists(filePath)) File.Delete(filePath);
128.  
     var exporter = new ExcelExporter();
129.  
     ExcelBuilder.Create().WithColumnHeaderStringFunc((key) =>
130.  
     {
131.  
     if (key.Contains("文本"))
132.  
     {
133.  
     return "Text";
134.  
     }
135.  
     return "未知语言";
136.  
     }).Build();
137.  
     var result = exporter.Export(filePath, new List<AttrsLocalizationTestData>()
138.  
     {
139.  
     new AttrsLocalizationTestData()
140.  
     {
141.  
     Text = "啊实打实大苏打撒",
142.  
     Name="aa",
143.  
     Number =5000,
144.  
     Text2 = "w萨达萨达萨达撒",
145.  
     Text3 = "sadsad打发打发士大夫的"
146.  
     },
147.  
     new AttrsLocalizationTestData()
148.  
     {
149.  
     Text = "啊实打实大苏打撒",
150.  
     Name="啊实打实大苏打撒",
151.  
     Number =6000,
152.  
     Text2 = "w萨达萨达萨达撒",
153.  
     Text3 = "sadsad打发打发士大夫的"
154.  
     },
155.  
     new AttrsLocalizationTestData()
156.  
     {
157.  
     Text = "啊实打实速度大苏打撒",
158.  
     Name="萨达萨达",
159.  
     Number =6000,
160.  
     Text2 = "突然他也让他人",
161.  
     Text3 = "sadsad打发打发士大夫的"
162.  
     },
163.  
     });
164.  
     }
165.  
      
166.  
     #endregion
167.  
      
168.  
     /// <summary>
169.  
     /// 从excel导入数据测试1
170.  
     /// </summary>
171.  
     /// <returns></returns>
172.  
     private static async Task Import1()
173.  
     {
174.  
     var importer = new ExcelImporter();
175.  
     var importResult = await importer.Import<ImportProductDto>(Path.Combine(Directory.GetCurrentDirectory(), "TestFiles", "importer1.xlsx"));
176.  
     foreach (var item in importResult.Data)
177.  
     {
178.  
     Console.WriteLine(item.Name+"-"+item.Code+"-"+item.BarCode);
179.  
     }
180.  
     }
181.  
      
182.  
     /// <summary>
183.  
     /// 导入带有枚举值的数据
184.  
     /// </summary>
185.  
     /// <returns></returns>
186.  
     private static async Task Import2()
187.  
     {
188.  
     var importer = new ExcelImporter();
189.  
     var importResult = await importer.Import<ImportProduct2Dto>(Path.Combine(Directory.GetCurrentDirectory(), "TestFiles", "ImportProduct2Dto.xlsx"));
190.  
     foreach (var item in importResult.Data)
191.  
     {
192.  
     Console.WriteLine(item.Name + "-" + item.Code + "-" + item.BarCode+"-"+item.Type.ToString());
193.  
     }
194.  
     }
195.  
      
196.  
     /// <summary>
197.  
     /// 导入数据验证
198.  
     /// </summary>
199.  
     /// <returns></returns>
200.  
     private static async Task Import3()
201.  
     {
202.  
     var importer = new ExcelImporter();
203.  
     var importResult = await importer.Import<ImportProduct3Dto>(Path.Combine(Directory.GetCurrentDirectory(), "TestFiles", "ImportProduct2Dto.xlsx"));
204.  
     if (importResult.HasError)
205.  
     {
206.  
     StringBuilder stringBuilder = new StringBuilder();
207.  
     foreach (var item in importResult.RowErrors)
208.  
     {
209.  
     stringBuilder.AppendLine("出错行数：" + item.RowIndex);
210.  
     foreach (var fielderror in item.FieldErrors)
211.  
     {
212.  
     stringBuilder.AppendLine(" 出错列：" + fielderror.Key+" 出错原因:"+fielderror.Value);
213.  
     }
214.  
     }
215.  
     Console.WriteLine(stringBuilder.ToString());
216.  
     }
217.  
     else
218.  
     {
219.  
     foreach (var item in importResult.Data)
220.  
     {
221.  
     Console.WriteLine(item.Name + "-" + item.Code + "-" + item.BarCode + "-" + item.Type.ToString());
222.  
     }
223.  
     }
224.  
      
225.  
     }
226.  
      
227.  
      
228.  
     }
229.  
      
230.  
     #region 导出excel demo class
231.  
     public class ExportTestData
232.  
     {
233.  
     public string Name1 { get; set; }
234.  
     public string Name2 { get; set; }
235.  
     public string Name3 { get; set; }
236.  
     public string Name4 { get; set; }
237.  
     }
238.  
      
239.  
     public class Question
240.  
     {
241.  
     public string Title { get; set; }
242.  
     public string Content { get; set; }
243.  
     public string Options { get; set; }
244.  
     public string Answer { get; set; }
245.  
     }
246.  
      
247.  
     /// <summary>
248.  
     /// 特性导出Excel
249.  
     /// </summary>
250.  
     [ExcelExporter(Name ="测试",TableStyle ="Light10")]
251.  
     public class ExportTestDataWithAttrs
252.  
     {
253.  
     [ExporterHeader(DisplayName="加粗文本",IsBold=true)]
254.  
     public string Text1 { get; set; }
255.  
      
256.  
     [ExporterHeader(DisplayName ="普通文本")]
257.  
     public string Text2 { get; set; }
258.  
      
259.  
     [ExporterHeader(DisplayName = "忽略", IsIgnore = true)]
260.  
     public string Text3 { get; set; }
261.  
      
262.  
     [ExporterHeader(DisplayName = "数值", Format = "#,##0")]
263.  
     public double Number { get; set; }
264.  
      
265.  
     [ExporterHeader(DisplayName = "名称", IsAutoFit = true)]
266.  
     public string Name { get; set; }
267.  
      
268.  
     }
269.  
      
270.  
     /// <summary>
271.  
     /// 列头处理或者多语言支持
272.  
     /// </summary>
273.  
     [ExcelExporter(Name = "测试", TableStyle = "Light10")]
274.  
     public class AttrsLocalizationTestData
275.  
     {
276.  
     [ExporterHeader(DisplayName = "加粗文本", IsBold = true)]
277.  
     public string Text { get; set; }
278.  
      
279.  
     [ExporterHeader(DisplayName = "普通文本")]
280.  
     public string Text2 { get; set; }
281.  
      
282.  
     [ExporterHeader(DisplayName = "忽略", IsIgnore = true)]
283.  
     public string Text3 { get; set; }
284.  
      
285.  
     [ExporterHeader(DisplayName = "数值", Format = "#,##0")]
286.  
     public double Number { get; set; }
287.  
      
288.  
     [ExporterHeader(DisplayName = "名称", IsAutoFit = true)]
289.  
     public string Name { get; set; }
290.  
     }
291.  
      
292.  
     #endregion
293.  
      
294.  
     /// <summary>
295.  
     /// 从excel导入数据 dto
296.  
     /// </summary>
297.  
     public class ImportProductDto
298.  
     {
299.  
     /// <summary>
300.  
     /// 产品名称
301.  
     /// </summary>
302.  
     [ImporterHeader(Name = "产品名称")]
303.  
     public string Name { get; set; }
304.  
     /// <summary>
305.  
     /// 产品代码
306.  
     /// </summary>
307.  
     [ImporterHeader(Name = "产品代码")]
308.  
     public string Code { get; set; }
309.  
     /// <summary>
310.  
     /// 产品条码
311.  
     /// </summary>
312.  
     [ImporterHeader(Name = "产品条码")]
313.  
     public string BarCode { get; set; }
314.  
     }
315.  
      
316.  
     [ExcelExporter(Name = "测试1", TableStyle = "Light10")]
317.  
     public class ImportProduct2Dto
318.  
     {
319.  
     /// <summary>
320.  
     /// 产品名称
321.  
     /// </summary>
322.  
     [ImporterHeader(Name = "产品名称")]
323.  
     [ExporterHeader(DisplayName = "产品名称")]
324.  
     public string Name { get; set; }
325.  
     /// <summary>
326.  
     /// 产品代码
327.  
     /// </summary>
328.  
     [ImporterHeader(Name = "产品代码")]
329.  
     [ExporterHeader(DisplayName = "产品代码")]
330.  
     public string Code { get; set; }
331.  
     /// <summary>
332.  
     /// 产品条码
333.  
     /// </summary>
334.  
     [ImporterHeader(Name = "产品条码")]
335.  
     [ExporterHeader(DisplayName = "产品条码")]
336.  
     public string BarCode { get; set; }
337.  
     /// <summary>
338.  
     /// 客户Id
339.  
     /// </summary>
340.  
     [ImporterHeader(Name = "客户代码")]
341.  
     [ExporterHeader(DisplayName = "客户代码")]
342.  
     public long ClientId { get; set; }
343.  
     /// <summary>
344.  
     /// 产品型号
345.  
     /// </summary>
346.  
     [ImporterHeader(Name = "产品型号")]
347.  
     [ExporterHeader(DisplayName = "产品型号")]
348.  
     public string Model { get; set; }
349.  
     /// <summary>
350.  
     /// 申报价值
351.  
     /// </summary>
352.  
     [ImporterHeader(Name = "申报价值")]
353.  
     [ExporterHeader(DisplayName = "申报价值")]
354.  
     public double DeclareValue { get; set; }
355.  
     /// <summary>
356.  
     /// 货币单位
357.  
     /// </summary>
358.  
     [ImporterHeader(Name = "货币单位")]
359.  
     [ExporterHeader(DisplayName = "货币单位")]
360.  
     public string CurrencyUnit { get; set; }
361.  
     /// <summary>
362.  
     /// 品牌名称
363.  
     /// </summary>
364.  
     [ImporterHeader(Name = "品牌名称")]
365.  
     [ExporterHeader(DisplayName = "品牌名称")]
366.  
     public string BrandName { get; set; }
367.  
     /// <summary>
368.  
     /// 尺寸
369.  
     /// </summary>
370.  
     [ImporterHeader(Name = "尺寸(长x宽x高)")]
371.  
     [ExporterHeader(DisplayName = "尺寸(长x宽x高)")]
372.  
     public string Size { get; set; }
373.  
     /// <summary>
374.  
     /// 重量
375.  
     /// </summary>
376.  
     [ImporterHeader(Name = "重量(KG)")]
377.  
     [ExporterHeader(DisplayName = "重量(KG)")]
378.  
     public double Weight { get; set; }
379.  
      
380.  
     /// <summary>
381.  
     /// 类型
382.  
     /// </summary>
383.  
     [ImporterHeader(Name = "类型")]
384.  
     [ExporterHeader(DisplayName = "类型")]
385.  
     public ImporterProductType Type { get; set; }
386.  
      
387.  
     /// <summary>
388.  
     /// 是否行
389.  
     /// </summary>
390.  
     [ImporterHeader(Name = "是否行")]
391.  
     [ExporterHeader(DisplayName = "是否行")]
392.  
     public bool IsOk { get; set; }
393.  
     }
394.  
      
395.  
      
396.  
     public class ImportProduct3Dto
397.  
     {
398.  
     /// <summary>
399.  
     /// 产品名称
400.  
     /// </summary>
401.  
     [ImporterHeader(Name = "产品名称", Description = "必填")]
402.  
     [Required(ErrorMessage = "产品名称是必填的")]
403.  
     public string Name { get; set; }
404.  
     /// <summary>
405.  
     /// 产品代码
406.  
     /// </summary>
407.  
     [ImporterHeader(Name = "产品代码", Description = "最大长度为8")]
408.  
     [MaxLength(8, ErrorMessage = "产品代码最大长度为8")]
409.  
     public string Code { get; set; }
410.  
     /// <summary>
411.  
     /// 产品条码
412.  
     /// </summary>
413.  
     [ImporterHeader(Name = "产品条码")]
414.  
     [MaxLength(10, ErrorMessage = "产品条码最大长度为10")]
415.  
     [RegularExpression(@"^d*$", ErrorMessage = "产品条码只能是数字")]
416.  
     public string BarCode { get; set; }
417.  
     /// <summary>
418.  
     /// 客户Id
419.  
     /// </summary>
420.  
     [ImporterHeader(Name = "客户代码")]
421.  
     public long ClientId { get; set; }
422.  
     /// <summary>
423.  
     /// 产品型号
424.  
     /// </summary>
425.  
     [ImporterHeader(Name = "产品型号")]
426.  
     public string Model { get; set; }
427.  
     /// <summary>
428.  
     /// 申报价值
429.  
     /// </summary>
430.  
     [ImporterHeader(Name = "申报价值")]
431.  
     public double DeclareValue { get; set; }
432.  
     /// <summary>
433.  
     /// 货币单位
434.  
     /// </summary>
435.  
     [ImporterHeader(Name = "货币单位")]
436.  
     public string CurrencyUnit { get; set; }
437.  
     /// <summary>
438.  
     /// 品牌名称
439.  
     /// </summary>
440.  
     [ImporterHeader(Name = "品牌名称")]
441.  
     public string BrandName { get; set; }
442.  
     /// <summary>
443.  
     /// 尺寸
444.  
     /// </summary>
445.  
     [ImporterHeader(Name = "尺寸(长x宽x高)")]
446.  
     public string Size { get; set; }
447.  
     /// <summary>
448.  
     /// 重量
449.  
     /// </summary>
450.  
     [ImporterHeader(Name = "重量(KG)")]
451.  
     public double Weight { get; set; }
452.  
      
453.  
     /// <summary>
454.  
     /// 类型
455.  
     /// </summary>
456.  
     [ImporterHeader(Name = "类型")]
457.  
     public ImporterProductType Type { get; set; }
458.  
      
459.  
     /// <summary>
460.  
     /// 是否行
461.  
     /// </summary>
462.  
     [ImporterHeader(Name = "是否行")]
463.  
     public bool IsOk { get; set; }
464.  
     }
465.  
      
466.  
     public enum ImporterProductType
467.  
     {
468.  
     [Display(Name = "第一")]
469.  
     One,
470.  
     [Display(Name = "第二")]
471.  
     Two
472.  
     }
473.  
     }