Formatting Excel Worksheets in C# Using EPPlus

EPPlus offers a wide range of features for formatting Excel worksheets, allowing you to create a professional, polished look for your data. In this guide, we'll cover the basics and explore some of the more advanced options available.

Let's start by creating a new Excel worksheet with EPPlus:

using (var package = new ExcelPackage(new FileInfo("Workbook.xlsx")))
    var worksheet = package.Workbook.Worksheets.Add("Sheet1");

Now, we'll look at how to format cells, including modifying font styles and cell color.

var cell = worksheet.Cells[1, 1];
cell.Style.Font.Bold = true;
cell.Style.Fill.PatternType = ExcelFillStyle.Solid;
cell.Value = "Hello, world!";

EPPlus also supports creating Excel tables, which can make data easier to read and analyze.

var range = worksheet.Cells["A1:C3"];
var table = worksheet.Tables.Add(range, "MyTable");
table.ShowHeader = true;
table.ShowFilter = true;
table.TableStyle = TableStyles.Medium9;

Here is how the final table in Excel would look:

Header 1 Header 2 Header 3
Hello, world! Cell 2 Cell 3
Cell 4 Cell 5 Cell 6