Alternating Background

Is there a simple way to make the rows in the created excel doc alternating color?

Thanks

excel.Worksheets[0].Cells.Rows[0].Style.ForegroundColor = Color.Yellow;

@Marmot,
Aspose.Cells has replaced Aspose.Excel that is no more under active development now. Aspose.Cells provides features to create and format tables for better visualization. Based upon the table style, you will get alternate colors of each row. You may try the following sample code to achieve this requirement.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

// Create directory if it is not already present.
bool IsExists = System.IO.Directory.Exists(dataDir);
if (!IsExists)
    System.IO.Directory.CreateDirectory(dataDir);

// Create a workbook.
Workbook workbook = new Workbook();

// Obtaining the reference of the default(first) worksheet
Worksheet sheet = workbook.Worksheets[0];

// Obtaining Worksheet's cells collection
Cells cells = sheet.Cells;

// Setting the value to the cells
Aspose.Cells.Cell cell = cells["A1"];
cell.PutValue("Employee");
cell = cells["B1"];
cell.PutValue("Quarter");
cell = cells["C1"];
cell.PutValue("Product");
cell = cells["D1"];
cell.PutValue("Continent");
cell = cells["E1"];
cell.PutValue("Country");
cell = cells["F1"];
cell.PutValue("Sale");

cell = cells["A2"];
cell.PutValue("David");
cell = cells["A3"];
cell.PutValue("David");
cell = cells["A4"];
cell.PutValue("David");
cell = cells["A5"];
cell.PutValue("David");
cell = cells["A6"];
cell.PutValue("James");
cell = cells["A7"];
cell.PutValue("James");
cell = cells["A8"];
cell.PutValue("James");
cell = cells["A9"];
cell.PutValue("James");
cell = cells["A10"];
cell.PutValue("James");
cell = cells["A11"];
cell.PutValue("Miya");
cell = cells["A12"];
cell.PutValue("Miya");
cell = cells["A13"];
cell.PutValue("Miya");
cell = cells["A14"];
cell.PutValue("Miya");
cell = cells["A15"];
cell.PutValue("Miya");
cell = cells["B2"];
cell.PutValue(1);
cell = cells["B3"];
cell.PutValue(2);
cell = cells["B4"];
cell.PutValue(3);
cell = cells["B5"];
cell.PutValue(4);
cell = cells["B6"];
cell.PutValue(1);
cell = cells["B7"];
cell.PutValue(2);
cell = cells["B8"];
cell.PutValue(3);
cell = cells["B9"];
cell.PutValue(4);
cell = cells["B10"];
cell.PutValue(4);
cell = cells["B11"];
cell.PutValue(1);
cell = cells["B12"];
cell.PutValue(1);
cell = cells["B13"];
cell.PutValue(2);
cell = cells["B14"];
cell.PutValue(2);
cell = cells["B15"];
cell.PutValue(2);

cell = cells["C2"];
cell.PutValue("Maxilaku");
cell = cells["C3"];
cell.PutValue("Maxilaku");
cell = cells["C4"];
cell.PutValue("Chai");
cell = cells["C5"];
cell.PutValue("Maxilaku");
cell = cells["C6"];
cell.PutValue("Chang");
cell = cells["C7"];
cell.PutValue("Chang");
cell = cells["C8"];
cell.PutValue("Chang");
cell = cells["C9"];
cell.PutValue("Chang");
cell = cells["C10"];
cell.PutValue("Chang");
cell = cells["C11"];
cell.PutValue("Geitost");
cell = cells["C12"];
cell.PutValue("Chai");
cell = cells["C13"];
cell.PutValue("Geitost");
cell = cells["C14"];
cell.PutValue("Geitost");
cell = cells["C15"];
cell.PutValue("Geitost");

cell = cells["D2"];
cell.PutValue("Asia");
cell = cells["D3"];
cell.PutValue("Asia");
cell = cells["D4"];
cell.PutValue("Asia");
cell = cells["D5"];
cell.PutValue("Asia");
cell = cells["D6"];
cell.PutValue("Europe");
cell = cells["D7"];
cell.PutValue("Europe");
cell = cells["D8"];
cell.PutValue("Europe");
cell = cells["D9"];
cell.PutValue("Europe");
cell = cells["D10"];
cell.PutValue("Europe");
cell = cells["D11"];
cell.PutValue("America");
cell = cells["D12"];
cell.PutValue("America");
cell = cells["D13"];
cell.PutValue("America");
cell = cells["D14"];
cell.PutValue("America");
cell = cells["D15"];
cell.PutValue("America");


cell = cells["E2"];
cell.PutValue("China");
cell = cells["E3"];
cell.PutValue("India");
cell = cells["E4"];
cell.PutValue("Korea");
cell = cells["E5"];
cell.PutValue("India");
cell = cells["E6"];
cell.PutValue("France");
cell = cells["E7"];
cell.PutValue("France");
cell = cells["E8"];
cell.PutValue("Germany");
cell = cells["E9"];
cell.PutValue("Italy");
cell = cells["E10"];
cell.PutValue("France");
cell = cells["E11"];
cell.PutValue("U.S.");
cell = cells["E12"];
cell.PutValue("U.S.");
cell = cells["E13"];
cell.PutValue("Brazil");
cell = cells["E14"];
cell.PutValue("U.S.");
cell = cells["E15"];
cell.PutValue("U.S.");


cell = cells["F2"];
cell.PutValue(2000);
cell = cells["F3"];
cell.PutValue(500);
cell = cells["F4"];
cell.PutValue(1200);
cell = cells["F5"];
cell.PutValue(1500);
cell = cells["F6"];
cell.PutValue(500);
cell = cells["F7"];
cell.PutValue(1500);
cell = cells["F8"];
cell.PutValue(800);
cell = cells["F9"];
cell.PutValue(900);
cell = cells["F10"];
cell.PutValue(500);
cell = cells["F11"];
cell.PutValue(1600);
cell = cells["F12"];
cell.PutValue(600);
cell = cells["F13"];
cell.PutValue(2000);
cell = cells["F14"];
cell.PutValue(500);
cell = cells["F15"];
cell.PutValue(900);

// Adding a new List Object to the worksheet
Aspose.Cells.Tables.ListObject listObject = sheet.ListObjects[sheet.ListObjects.Add("A1", "F15", true)];

// Adding Default Style to the table
listObject.TableStyleType = Aspose.Cells.Tables.TableStyleType.TableStyleMedium10;

// Show Total
listObject.ShowTotals = true;

// Set the Quarter field's calculation type
listObject.ListColumns[1].TotalsCalculation = Aspose.Cells.Tables.TotalsCalculation.Count;


// Saving the Excel file
workbook.Save(dataDir + "output.xlsx");

You may visit the following article for more details about setting table formats:
Create and Format Table

For trials purpose, download the latest version here:
Aspose.Cells for .NET (Latest Version)

Here is a ready to run solution which can be used to test the product features with minimal effort.