When viewing many tables with complex data , In order to find the required data groups quickly , This data group often needs to be classified , A simple and fast way is to fill the background color of the cell where the data group is located , In this way, we can see the data classification intuitively when reading the file , Beautiful and practical . For developers , I'm here to provide a simple and fast way , Ready to use C# Set background color for cells . Here's how I do it , For reference . I used a name Spire.XLS
for .
NET Free components of , The product is manufactured by E-iceblue Issued by the company , Details can be found on the official website (https://www.e-iceblue.cn/Introduce/Spire-XLS-NET.html), No nonsense , Let me demonstrate my operation .

The original document is as shown in the figure :


step :

1, Add namespace
Using Spire.Xls; Using System.Drawing;
2,  Initialize workbook and load document
Workbook workbook = new Workbook(); workbook.LoadFromFile(@"
C:\Users\Administrator\Desktop\test.xlsx", ExcelVersion.Version97to2003);
Worksheet worksheet= workbook.Worksheets[0];Worksheet worksheet =
3, Set cell background color
worksheet.Range["A1:C2"].Style.Color = Color.LightSeaGreen; worksheet.Range["
A3:C4"].Style.Color = Color.LightYellow; worksheet.Range["A5:C19"].Style.Color =
worksheet.Range["A20:C21"].Style.Color = Color.DeepSkyBlue; worksheet.Range["
A22:C23"].Style.Color = Color.Yellow;
4, Save and preview file
The document background color is added successfully after the above steps are completed , As shown in the figure below :


Full code :

using System.Drawing; using Spire.Xls; namespace background_color { class
Program {static void Main(string[] args) { Workbook workbook = new Workbook();
ExcelVersion.Version97to2003); Worksheet worksheet= workbook.Worksheets[0]; //
set the backgroundcolor of Range["A1:C2"] worksheet.Range["A1:C2"].Style.Color =
Color.LightSeaGreen;//set the backgroundcolor of Range["A3:C4"]
worksheet.Range["A3:C4"].Style.Color = Color.LightYellow; //set the
backgroundcolor of Range["A5:C19"] worksheet.Range["A5:C19"].Style.Color =
Color.SpringGreen;//set the backgroundcolor of Range["A20:C21"] worksheet.Range[
"A20:C21"].Style.Color = Color.DeepSkyBlue; //set the backgroundcolor of
Range["A22:C23"] worksheet.Range["A22:C23"].Style.Color = Color.Yellow; //save
and launch the project workbook.SaveToFile("Sample.xls",
System.Diagnostics.Process.Start(workbook.FileName); } } }
Imports System.Drawing Imports Spire.Xls Namespace background_color Class
Program Private Shared Sub Main(ByVal args() As String) Dim workbook As Workbook
= New Workbook workbook.LoadFromFile("C:\Users\Administrator\Desktop\test.xlsx"
, ExcelVersion.Version97to2003) Dim worksheet As Worksheet= workbook.Worksheets(
0) 'set the backgroundcolor of Range["A1:C2"] worksheet.Range("A1:C2"
).Style.Color = Color.LightSeaGreen 'set the backgroundcolor of Range["A3:C4"]
worksheet.Range("A3:C4").Style.Color = Color.LightYellow 'set the
backgroundcolor of Range["A5:C19"] worksheet.Range("A5:C19").Style.Color =
Color.SpringGreen'set the backgroundcolor of Range["A20:C21"] worksheet.Range("
A20:C21").Style.Color = Color.DeepSkyBlue 'set the backgroundcolor of
Range["A22:C23"] worksheet.Range("A22:C23").Style.Color = Color.Yellow 'save
and launch the project workbook.SaveToFile("Sample.xls",
System.Diagnostics.Process.Start(workbook.FileName) End Sub End Class End