Sparklines

Output: Sparklines.xlsx

public void Run()
{
    var workbook = new Workbook();
    var worksheet = workbook.Worksheets[0];

    worksheet.GetRange("A1:E1").SetValue(new[] { 1, 3, 2, 5, 4 });
    worksheet.GetRange("A2:E2").SetValue(new[] { 1, 3, 2, 5, 4 });

    worksheet.SparkLineGroups.Add("Sheet1!A1:E1","F1",SparkLineType.Line);
    worksheet.SparkLineGroups.Add("Sheet1!A2:E2", "F2", SparkLineType.Column);

    workbook.SaveAs("Sparklines.xlsx");
}