C# を使用してデータを Excel ファイルにエクスポートする

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Ganss.Excel;

namespace DatatoExcelbyZeeshan {
  public class Program {
    public static void Main(string[] args) {
      var s = new List<Student> {
        new Student { name = "M.Zeeshan", marks = 94.0 },
        new Student { name = "Shani", marks = 84.0 },
        new Student { name = "Saada g", marks = 74.0 },
        new Student { name = "Haseeba", marks = 34.0 },
      };
      ExcelMapper maper = new ExcelMapper();
      var newFile = @"D:\sample.xlsx";
      maper.Save(newFile, s, "ShaniData", true);
      Console.ReadKey();
    }
  }
  public class Student {
    public String name { get; set; }
    public double marks { get; set; }
  }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Spire.Xls;

namespace ExportArraytoExcelbyZeeshan {
  class Program {
    static void Main(string[] args) {
      Workbook wb = new Workbook();
      wb.Worksheets.Clear();
      Worksheet ws = wb.Worksheets.Add("ShaniArray");
      string[,] ProgramSubjectResults =
          new string[,] { { "Name", "City", "Gpa", "Language" },
                          { "Zeeshan", "ISB", "3.7", "Flutter Development" },
                          { "Saad Jaan", "RWP", "4.0", "Full Stack" },
                          { "Haseeba", "FATA", "3.53", "Andriod Development" } };
      ws.InsertArray(ProgramSubjectResults, 2, 1);
      ws.AllocatedRange.AutoFitColumns();
      wb.SaveToFile(@"D:\ArraytoExcel.xlsx", ExcelVersion.Version2016);
    }
  }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data;
using Spire.Xls;

namespace ExportDataTableToExcelByZeeshan {
  class Program {
    static void Main(string[] args) {
      Workbook wb = new Workbook();
      wb.Worksheets.Clear();
      Worksheet ws = wb.Worksheets.Add("DataTableToExcel");
      DataTable dt = new DataTable();
      dt.Columns.Add("Roll Number", typeof(String));
      dt.Columns.Add("Student Name", typeof(String));
      dt.Columns.Add("Section", typeof(String));
      DataRow dtr = dt.NewRow();
      dtr[0] = "130-Arid-3227";
      dtr[1] = "Muhammad Zeeshan";
      dtr[2] = "Bs(IT)8A";
      dt.Rows.Add(dtr);
      dtr = dt.NewRow();
      dtr[0] = "123-Arid-3156";
      dtr[1] = "Bubby Shah";
      dtr[2] = "Bs(AI)7C";
      dt.Rows.Add(dtr);
      dtr = dt.NewRow();
      ws.InsertDataTable(dt, true, 1, 1, true);
      wb.SaveToFile(@"C:\DataTableToExcel.xlsx", ExcelVersion.Version2016);
    }
  }
}

using System;
using System.Collections.Generic;
using GemBox.Spreadsheet;
using Newtonsoft.Json;

namespace JsontoExcelByZeeshan {
  class Program {
    static void Main(string[] args) {
      SpreadsheetInfo.SetLicense("FREE-LIMITED-KEY");
      string JsonData =
          @"{
      ""0"": {
        ""Name"": ""Muhammad Zeeshan"",
        ""Roll"": ""3227"",
        ""GPA"": 3.11,
        ""Fyp"": ""Garden Guide System""
      },
      ""1"" : {
        ""Name"": ""Bubby Shah"",
        ""Roll"": ""3265"",
        ""GPA"": 2.9,
        ""Fyp"": ""Football Field Management""
      },
      ""2"" : {
        ""Name"": ""Haseeb-Ur-Rehman"",
        ""Roll"": ""3156"",
        ""GPA"": 3.9,
        ""Fyp"": ""Plants Recognition""
      }
    }";
      Dictionary<string, Student> shani =
          JsonConvert.DeserializeObject<Dictionary<string, Student>>(JsonData);
      ExcelFile wb = new ExcelFile();
      ExcelWorksheet ws = wb.Worksheets.Add("ShaniJSON" + "");
      ws.Cells[0, 0].Value = "Student Name";
      ws.Cells[0, 1].Value = "Roll No";
      ws.Cells[0, 2].Value = "GPA";
      ws.Cells[0, 3].Value = "FYP";

      int row = 0;
      foreach (Student user in shani.Values) {
        ws.Cells[++row, 0].Value = user.Fname;
        ws.Cells[row, 1].Value = user.Roll;
        ws.Cells[row, 2].Value = user.Gpa;
        ws.Cells[row, 3].Value = user.Fyp;
      }
      wb.Save(@"D:\JSON TO Excel by Zeeshan.xlsx");
    }
  }
  class Student {
    [JsonProperty("Name")]
    public string Fname { get; set; }

    [JsonProperty("Roll")]
    public string Roll { get; set; }

    [JsonProperty("GPA")]
    public float Gpa { get; set; }

    [JsonProperty("Fyp")]
    public string Fyp { get; set; }
  }
}