Please download the EPPlus .NET library from the link - http://epplus.codeplex.com/ First of all, if we create a Hyperlink, using function, first we need to know the formula.
What is an Excel formula ?
- A formula is an expression, which calculates the value of the cell. A formula performs the other action on the data in your worksheet. A formula always starts with an equal sign(=), which can be followed by the numbers, mathematical operators (like a '+' or '-' sign for addition or subtraction) and some built-in Excel functions, which can really expand the power of a formula. 
 
What is an Excel function ?
- A function is predefined in formulas and are already available in Excel or spreadsheets like SUM(), COUNT(), HYPERLINK() etc. These built-in functions are used for the specific purpose.
 
 
What is HYPERLINK() Function ?
HYPERLINK() is a predefined Excel function & it takes two parameters. First is link location & second is friendly name or display name. When we are clicking it, it will redirect to the link location. 
Hyperlink function uses Formula property of ExcelRange class given below. 
- ExcelRange Rng = wsSheet1.Cells["B19"];
 - String SiteLink = "https://www.google.com";
 - String DisTxt = "Go to GOOGLE";
 - Rng.Formula = "=HYPERLINK(\"" + SiteLink + "\", \"" + DisTxt + "\")"; 
 
 
 
In the above example, we can see formula property. By using formula property, we can set cell formula in an Excel sheet. It accepts a string as a formula. In 
Part 4 of this tutorial, we know that EPPlus don't have formula calculation engine, so if you type a wrong Excel formula in the code, the compiler does not show any compilation error but generated Excel sheet will show an error.
Hyperlink function works on
- To another cell of an existing sheet.
 - To different sheet within same Excel file. 
 - To any local file. 
 - To any remote Server file. 
 - To link with an E-mail address.
 
To another cell of an existing sheet
- ExcelRange Rng = wsSheet1.Cells["B20"];
 - String Sht1_B10 = "#'Sheet1'!B2";
 - String B10 = "Go to Cell B2";
 - Rng.Formula = "=HYPERLINK(\"" + Sht1_B10 + "\", \"" + B10 +"\")"; 
 
Another sheet within same Excel file,
- ExcelRange Rng = wsSheet1.Cells["B21"];
 - String Sht2_B1= "#'Sheet2'!B2";
 - String B1 = "Go to Cell B1 in Sheet2";
 - Rng.Formula = "=HYPERLINK(\"" + Sht2_B1 + "\", \"" + B1 +"\")"; 
 
 
To any local file,
- ExcelRange Rng = wsSheet1.Cells["B22"];
 - String Local_File = @"D:\Sample.xlsx";
 - String File = "D:\\Sample.xlsx";
 - Rng.Formula = "=HYPERLINK(\"" + Local_File + "\", \"" + File + "\")"; 
 
To any remote Server file,
- ExcelRange Rng = wsSheet1.Cells["B23"];
 - String AbsoLnk = "https://goo.gl/gOa0wm";
 - Rng.Formula = "=HYPERLINK(\"" + AbsoLnk+ "\", \"" + AbsoLnk + "\")"; 
 
To link with an E-mail address,
- ExcelRange Rng = wsSheet1.Cells["B24"];
 - String MailLnk = "mailto:[email protected]";
 - String MailID = "[email protected]";
 - Rng.Formula = "=HYPERLINK(\"" + MailLnk + "\", \"" + MailID + "\")";
 
Output in an Excel sheet is given below.
![]()
 
Source code 
- using System;  
 - using OfficeOpenXml;  
 - using System.IO;  
 - using System.Drawing;  
 - using OfficeOpenXml.Style;  
 - using OfficeOpenXml.Style.XmlAccess;  
 - namespace DemoEpplus {  
 -     class Program {  
 -         static void Main(string[] args) {  
 -             ExcelPackage ExcelPkg = new ExcelPackage();  
 -             ExcelWorksheet wsSheet1 = ExcelPkg.Workbook.Worksheets.Add("Sheet1");  
 -             ExcelWorksheet wsSheet2 = ExcelPkg.Workbook.Worksheets.Add("Sheet2");  
 -             using(ExcelRange Rng = wsSheet1.Cells[2, 2, 2, 2]) {  
 -                 Rng.Value = "Everyday Be Coding - Excel HYPERLINK using EPPlus .Net Library";  
 -                 Rng.Style.Font.Size = 16;  
 -                 Rng.Style.Font.Bold = true;  
 -                 Rng.Style.Font.Italic = true;  
 -                 Rng.Style.Border.Top.Style = ExcelBorderStyle.Thin;  
 -                 Rng.Style.Border.Left.Style = ExcelBorderStyle.Thin;  
 -                 Rng.Style.Border.Right.Style = ExcelBorderStyle.Thin;  
 -                 Rng.Style.Border.Bottom.Style = ExcelBorderStyle.Thin;  
 -             }  
 -               
 -             string StyleName = "HyperStyle";  
 -             ExcelNamedStyleXml HyperStyle = wsSheet1.Workbook.Styles.CreateNamedStyle(StyleName);  
 -             HyperStyle.Style.Font.UnderLine = true;  
 -             HyperStyle.Style.Font.Size = 12;  
 -             HyperStyle.Style.Font.Color.SetColor(Color.Blue);  
 -               
 -             using(ExcelRange Rng = wsSheet1.Cells[4, 1, 4, 1]) {  
 -                 Rng.Value = "Option-1:";  
 -                 Rng.Style.Font.Size = 13;  
 -                 Rng.Style.Font.Bold = true;  
 -                 Rng.Style.Font.Color.SetColor(Color.Red);  
 -             }  
 -             using(ExcelRange Rng = wsSheet1.Cells[4, 2, 4, 2]) {  
 -                 Rng.Value = "Using EPPlus Hyperlink property of ExcelRange class";  
 -                 Rng.Style.Font.Size = 13;  
 -             }  
 -               
 -             using(ExcelRange Rng = wsSheet1.Cells[6, 2, 6, 2]) {  
 -                 Rng.Hyperlink = new Uri("http://www.google.com", UriKind.Absolute);  
 -                 Rng.Value = "Go to GOOGLE";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -               
 -             using(ExcelRange Rng = wsSheet1.Cells[7, 2, 7, 2]) {  
 -                 Rng.Hyperlink = new Uri("#'Sheet1'!B2", UriKind.Relative);  
 -                 Rng.Value = "Go to Cell B2";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -               
 -             using(ExcelRange Rng = wsSheet1.Cells[8, 2, 8, 2]) {  
 -                 Rng.Hyperlink = new Uri("#'Sheet2'!B1", UriKind.Relative);  
 -                 Rng.Value = "Go to Cell B1 in Sheet2";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -               
 -             using(ExcelRange Rng = wsSheet1.Cells[9, 2, 9, 2]) {  
 -                 Rng.Hyperlink = new Uri(@ "D:\sample.xlsx");  
 -                 Rng.Value = "D:\\sample.xlsx";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -               
 -             using(ExcelRange Rng = wsSheet1.Cells[10, 2, 10, 2]) {  
 -                 Rng.Hyperlink = new Uri("https://goo.gl/gOa0wm", UriKind.Absolute);  
 -                 Rng.Value = "https://goo.gl/gOa0wm";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -             using(ExcelRange Rng = wsSheet1.Cells[11, 2, 11, 2]) {  
 -                 Rng.Hyperlink = new Uri("mailto:[email protected]", UriKind.Absolute);  
 -                 Rng.Value = "[email protected]";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -               
 -             using(ExcelRange Rng = wsSheet1.Cells[13, 1, 13, 1]) {  
 -                 Rng.Value = "Option-2:";  
 -                 Rng.Style.Font.Size = 13;  
 -                 Rng.Style.Font.Bold = true;  
 -                 Rng.Style.Font.Color.SetColor(Color.Red);  
 -             }  
 -             using(ExcelRange Rng = wsSheet1.Cells[13, 2, 13, 2]) {  
 -                 Rng.Value = "Using Epplus AddPicture() Method of ExcelDrawings class";  
 -                 Rng.Style.Font.Size = 13;  
 -             }  
 -             Image img = Image.FromFile(@ "D:\EverydayBeCoding.png");  
 -             ExcelPicture pic = wsSheet1.Drawings.AddPicture("Picture_Name", img, new Uri("http://www.google.com"));  
 -               
 -             pic.SetPosition(14, 0, 1, 0);  
 -             pic.SetSize(148, 26);  
 -               
 -             using(ExcelRange Rng = wsSheet1.Cells[17, 1, 17, 1]) {  
 -                 Rng.Value = "Option-3:";  
 -                 Rng.Style.Font.Bold = true;  
 -                 Rng.Style.Font.Size = 13;  
 -                 Rng.Style.Font.Color.SetColor(Color.Red);  
 -             }  
 -             using(ExcelRange Rng = wsSheet1.Cells[17, 2, 17, 2]) {  
 -                 Rng.Value = "Using Excel Hyperlink Function in the formula property of ExcelRange class";  
 -                 Rng.Style.Font.Size = 13;  
 -             }  
 -               
 -             string SiteLink = "https://www.google.com";  
 -             string DisTxt = "Go to GOOGLE";  
 -             using(ExcelRange Rng = wsSheet1.Cells[19, 2, 19, 2]) {  
 -                 Rng.Formula = "=HYPERLINK(\"" + SiteLink + "\", \"" + DisTxt + "\")";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -               
 -             string Sht1_B10 = "#'Sheet1'!B2";  
 -             string B10 = "Go to Cell B2";  
 -             using(ExcelRange Rng = wsSheet1.Cells[20, 2, 20, 2]) {  
 -                 Rng.Formula = "=HYPERLINK(\"" + Sht1_B10 + "\", \"" + B10 + "\")";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -               
 -             string Sht2_B1 = "#'Sheet2'!B1";  
 -             string B1 = "Go to Cell B1 in Sheet2";  
 -             using(ExcelRange Rng = wsSheet1.Cells[21, 2, 21, 2]) {  
 -                 Rng.Formula = "=HYPERLINK(\"" + Sht2_B1 + "\", \"" + B1 + "\")";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -               
 -             string Local_File = @ "D:\sample.xlsx";  
 -             string File = "D:\\sample.xlsx";  
 -             using(ExcelRange Rng = wsSheet1.Cells[22, 2, 22, 2]) {  
 -                 Rng.Formula = "=HYPERLINK(\"" + Local_File + "\", \"" + File + "\")";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -               
 -             string AbsoLnk = "https://goo.gl/gOa0wm";  
 -             using(ExcelRange Rng = wsSheet1.Cells[23, 2, 23, 2]) {  
 -                 Rng.Formula = "=HYPERLINK(\"" + AbsoLnk + "\", \"" + AbsoLnk + "\")";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -             string MailLnk = "mailto:[email protected]";  
 -             string MailID = "[email protected]";  
 -             using(ExcelRange Rng = wsSheet1.Cells[24, 2, 24, 2]) {  
 -                 Rng.Formula = "=HYPERLINK(\"" + MailLnk + "\", \"" + MailID + "\")";  
 -                 Rng.StyleName = StyleName;  
 -             }  
 -             wsSheet1.Cells[wsSheet1.Dimension.Address].AutoFitColumns();  
 -             ExcelPkg.SaveAs(new FileInfo(@ "D:\Hyperlink.xlsx"));  
 -         }  
 -     }  
 - }  
 
 
- Now, build & execute the code. File is (Hyperlink.xlsx) stored on D: drive of the computer.
 
Thank you for reading this blog.