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 									<li>
 										<a href="/document-processing/excel/excel-library/net/faqs/how-to-extract-embedded-OLE-files-from-an-Excel-workbook-as-streams">How to extract embedded OLE files from an Excel workbook as streams?</a>
 									</li>
+									<li>
+										<a href="/document-processing/excel/excel-library/net/faqs/how-to-apply-border-styles-for-merged-cells">How to apply border styles for merged cells?</a>
+									</li>
 								</ul>
 							</li>
 						</ul>
diff --git a/Document-Processing/Excel/Excel-Library/NET/faqs/how-to-apply-border-styles-for-merged-cells.md b/Document-Processing/Excel/Excel-Library/NET/faqs/how-to-apply-border-styles-for-merged-cells.md
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+---
+title: Apply border styles to merged cells in Excel | Syncfusion
+description: Learn how to apply border styles to merged cells in Excel using the Syncfusion .NET Excel (XlsIO) library.
+platform: document-processing
+control: XlsIO
+documentation: UG
+---
+
+# How to apply border styles for merged cells?
+
+As per the Microsoft Excel UI Behavior, while applying the styles to the single cell in the merged region, then it will apply only to that single cell. So please use the **MergeArea** property to apply the styles to the entire merged region.
+
+The following examples show how to apply border styles for merged cells in C# (cross-platform and Windows-specific) and VB.NET.
+
+{% tabs %}                                          
+{% highlight c# tabtitle="C# [Cross-platform]" playgroundButtonLink="https://raw.githubusercontent.com/SyncfusionExamples/XlsIO-Examples/master/FAQ/Border%20styles%20for%20merged%20cells/.NET/Borderstylesformergedcells/Borderstylesformergedcells/Program.cs,180" %}
+using (ExcelEngine excelEngine = new ExcelEngine())
+{
+    IApplication application = excelEngine.Excel;
+    application.DefaultVersion = ExcelVersion.Xlsx;
+    IWorkbook workbook = application.Workbooks.Open("../../../Data/Input.xlsx");
+    IWorksheet worksheet = workbook.Worksheets[0];
+
+    # region Creating a new style
+    IStyle style = workbook.Styles.Add("NewStyle");
+
+    style.Borders[ExcelBordersIndex.EdgeLeft].LineStyle = ExcelLineStyle.Thick;
+    style.Borders[ExcelBordersIndex.EdgeRight].LineStyle = ExcelLineStyle.Thick;
+    style.Borders[ExcelBordersIndex.EdgeTop].LineStyle = ExcelLineStyle.Thick;
+    style.Borders[ExcelBordersIndex.EdgeBottom].LineStyle = ExcelLineStyle.Thick;
+    style.Borders.Color = ExcelKnownColors.Red;
+
+    style.Font.Bold = true;
+    style.Font.Color = ExcelKnownColors.Green;
+    style.Font.Size = 24;
+    #endregion
+
+    //Applying style for merged region
+    worksheet.Range[2, 1].MergeArea.CellStyle = style;
+
+    workbook.SaveAs("../../../Output/MergeArea_Style.xlsx");
+}
+{% endhighlight %}
+
+{% highlight c# tabtitle="C# [Windows-specific]" %} 
+using (ExcelEngine excelEngine = new ExcelEngine())
+{
+    IApplication application = excelEngine.Excel;
+    application.DefaultVersion = ExcelVersion.Xlsx;
+    IWorkbook workbook = application.Workbooks.Open("../../Data/Input.xlsx");
+    IWorksheet worksheet = workbook.Worksheets[0];
+
+    # region Creating a new style
+    IStyle style = workbook.Styles.Add("NewStyle");
+    
+    style.Borders[ExcelBordersIndex.EdgeLeft].LineStyle = ExcelLineStyle.Thick;
+    style.Borders[ExcelBordersIndex.EdgeRight].LineStyle = ExcelLineStyle.Thick;
+    style.Borders[ExcelBordersIndex.EdgeTop].LineStyle = ExcelLineStyle.Thick;
+    style.Borders[ExcelBordersIndex.EdgeBottom].LineStyle = ExcelLineStyle.Thick;
+    style.Borders.Color = ExcelKnownColors.Red;
+
+    style.Font.Bold = true;
+    style.Font.Color = ExcelKnownColors.Green;
+    style.Font.Size = 24;
+    #endregion
+
+    //Applying style for merged region
+    worksheet.Range[2,1].MergeArea.CellStyle = style;
+   
+    workbook.SaveAs("../../Output/MergeArea_Style.xlsx");
+}
+{% endhighlight %}
+
+{% highlight vb.net tabtitle="VB.NET [Windows-specific]" %}
+ Using excelEngine As New ExcelEngine()
+     Dim application As IApplication = excelEngine.Excel
+     application.DefaultVersion = ExcelVersion.Xlsx
+
+     Dim workbook As IWorkbook = application.Workbooks.Open("../../Data/Input.xlsx")
+     Dim worksheet As IWorksheet = workbook.Worksheets(0)
+
+     ' Creating a new style
+     Dim style As IStyle = workbook.Styles.Add("NewStyle")
+     style.Borders(ExcelBordersIndex.EdgeLeft).LineStyle = ExcelLineStyle.Thick
+     style.Borders(ExcelBordersIndex.EdgeRight).LineStyle = ExcelLineStyle.Thick
+     style.Borders(ExcelBordersIndex.EdgeTop).LineStyle = ExcelLineStyle.Thick
+     style.Borders(ExcelBordersIndex.EdgeBottom).LineStyle = ExcelLineStyle.Thick
+     style.Borders.Color = ExcelKnownColors.Red
+     style.Font.Bold = True
+     style.Font.Color = ExcelKnownColors.Green
+     style.Font.Size = 24
+
+     ' Applying style for merged region
+     worksheet.Range(2, 1).MergeArea.CellStyle = style
+
+     workbook.SaveAs("../../Output/MergeArea_Style.xlsx")
+ End Using
+{% endhighlight %}
+{% endtabs %}
+
+A complete working example to apply border styles for merged cells using C# is present on <a href="https://github.com/SyncfusionExamples/XlsIO-Examples/tree/master/FAQ/Border%20styles%20for%20merged%20cells/.NET/Borderstylesformergedcells">this GitHub page</a>.