Writing to Excel Sheet Using EPPlus in C#

14 Feb, 2020
EPPlus is a very helpful open-source 3rd party DLL for writing data to excel. EPPlus supports multiple properties of spreadsheets like cell ranges, cell styling, charts, pictures, shapes, comments, tables, protection, encryption, pivot tables, data validation, conditional formatting, formula calculation, etc.
First of all install EPPlus using Packet Manager console by writing the following command:
Install-Package EPPlus 

Let’s see how to create and write to an excel-sheet using C#.
using System;using System.IO;// The following to two namespace contains// the functions for manipulating the// Excel file using OfficeOpenXml;using OfficeOpenXml.Style;  class Program{    static void Main(string[] args)    {        var Articles = new[]        {                new {                    Id = "101", Name = "C++"                },                new {                    Id = "102", Name = "Python"                },                new {                    Id = "103", Name = "Java Script"                },                new {                    Id = "104", Name = "GO"                },                new {                    Id = "105", Name = "Java"                },                new {                    Id = "106", Name = "C#"                }            };          // Creating an instance        // of ExcelPackage        ExcelPackage excel = new ExcelPackage();          // name of the sheet        var workSheet = excel.Workbook.Worksheets.Add("Sheet1");                  // setting the properties        // of the work sheet         workSheet.TabColor = System.Drawing.Color.Black;        workSheet.DefaultRowHeight = 12;          // Setting the properties        // of the first row        workSheet.Row(1).Height = 20;        workSheet.Row(1).Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;        workSheet.Row(1).Style.Font.Bold = true;              // Header of the Excel sheet        workSheet.Cells[1, 1].Value = "S.No";        workSheet.Cells[1, 2].Value = "Id";        workSheet.Cells[1, 3].Value = "Name";          // Inserting the article data into excel        // sheet by using the for each loop        // As we have values to the first row         // we will start with second row        int recordIndex = 2;                  foreach (var article in Articles)        {            workSheet.Cells[recordIndex, 1].Value = (recordIndex - 1).ToString();            workSheet.Cells[recordIndex, 2].Value = article.Id;            workSheet.Cells[recordIndex, 3].Value = article.Name;            recordIndex++;        }                  // By default, the column width is not         // set to auto fit for the content        // of the range, so we are using        // AutoFit() method here.         workSheet.Column(1).AutoFit();        workSheet.Column(2).AutoFit();        workSheet.Column(3).AutoFit();          // file name with .xlsx extension         string p_strPath = "H:\\geeksforgeeks.xlsx";                  if (File.Exists(p_strPath))            File.Delete(p_strPath);          // Create excel file on physical disk         FileStream objFileStrm = File.Create(p_strPath);        objFileStrm.Close();          // Write content to excel file         File.WriteAllBytes(p_strPath, excel.GetAsByteArray());        //Close Excel package        excel.Dispose();        Console.ReadKey();      }}
Output:
In this program, we are taking static values for the Articles data but in real-time, we can use database call and foreach loop for iteration of each record.
vibs2006
C#
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