C#借助Spire.XLS for .NET实现一键移除Excel条件格式

using Spire.Xls;

class Program
{
    static void Main(string[] args)
    {
        // 创建 Workbook 对象
        Workbook workbook = new Workbook();

        // 加载 Excel 文件
        workbook.LoadFromFile("input.xlsx");

        // 获取第一个工作表
        Worksheet sheet = workbook.Worksheets[0];

        // 获取指定单元格区域
        CellRange range = sheet.Range["A1:D20"];

        // 删除该区域内的所有条件格式
        range.ConditionalFormats.Clear();

        // 保存文件
        workbook.SaveToFile("output.xlsx", ExcelVersion.Version2016);
    }
}

sheet.ConditionalFormats.Clear();

using Spire.Xls;
using System.Drawing;
namespace HightDuplicateData_XLS
{
    class Program
    {
        static void Main(string[] args)
        {
            //实例化Workbook类，加载测试文档
            Workbook workbook = new Workbook();
            workbook.LoadFromFile("test.xlsx");
            //获取第一个工作表
            Worksheet sheet = workbook.Worksheets[0];
            //应用条件格式1到指定数据范围，高亮重复数值的单元格
            ConditionalFormatWrapper format1 = sheet.Range["A3:A13"].ConditionalFormats.AddCondition();
            format1.FormatType = ConditionalFormatType.DuplicateValues;
            format1.BackColor = Color.Cyan;
            //应用条件格式2到指定数据范围，高亮唯一值的单元格
            ConditionalFormatWrapper format2 = sheet.Range["A3:A13"].ConditionalFormats.AddCondition();
            format2.FormatType = ConditionalFormatType.UniqueValues;
            format2.BackColor = Color.Yellow;
            //保存文档并打开            
            workbook.SaveToFile("result.xlsx", ExcelVersion.Version2013);
            System.Diagnostics.Process.Start("result.xlsx");
        }
    }
}

using Spire.Xls;
using System.Drawing;
namespace HighlightTopData_XLS
{
    class Program
    {
        static void Main(string[] args)
        {
            //实例化workbook类
            Workbook workbook = new Workbook();
            //加载测试文档
            workbook.LoadFromFile("test.xlsx");
            //获取第一个工作表
            Worksheet sheet = workbook.Worksheets[0];
            //应用条件格式1到指定范围，并高亮最高（依次排序）的两个数值
            ConditionalFormatWrapper format1 = sheet.Range["B17:B24"].ConditionalFormats.AddCondition();
            format1.FormatType = ConditionalFormatType.TopBottom;
            format1.TopBottom.Type = TopBottomType.Top;
            format1.TopBottom.Rank = 2;
            format1.BackColor = Color.Green;
            //应用条件格式2到指定范围，并高亮最低（依次排序）的两个数值
            ConditionalFormatWrapper format2 = sheet.Range["B17:B24"].ConditionalFormats.AddCondition();
            format2.FormatType = ConditionalFormatType.TopBottom;
            format2.TopBottom.Type = TopBottomType.Bottom;
            format2.TopBottom.Rank = 2;
            format2.BackColor = Color.RosyBrown;
            //保存并打开文档
            workbook.SaveToFile("output.xlsx", ExcelVersion.Version2013);
            System.Diagnostics.Process.Start("output.xlsx");
        }
    }
}

using System.Drawing;
using Spire.Xls;
using Spire.Xls.Core;
using Spire.Xls.Core.Spreadsheet.Collections;
namespace Average_Condition
{
    class Program
    {
        static void Main(string[] args)
        {
            //实例化workbook类
            Workbook workbook = new Workbook();
            //加载文档
            workbook.LoadFromFile("test.xlsx");
            //获取第一个工作表
            Worksheet sheet = workbook.Worksheets[0];
            //添加条件格式1并应用到指定数据范围
            XlsConditionalFormats format1 = sheet.ConditionalFormats.Add();
            format1.AddRange(sheet.Range["B17:B24"]);
            //高亮低于平均数值的单元格
            IConditionalFormat cf1 = format1.AddAverageCondition(AverageType.Below);
            cf1.BackColor = Color.SkyBlue;
            //添加条件格式2并应用到指定数据范围
            XlsConditionalFormats format2 = sheet.ConditionalFormats.Add();
            format2.AddRange(sheet.Range["B17:B24"]);
            //高亮高于平均数值的单元格
            IConditionalFormat cf2 = format1.AddAverageCondition(AverageType.Above);
            cf2.BackColor = Color.Orange;
            //保存并打开文档
            workbook.SaveToFile("result.xlsx", ExcelVersion.Version2013);
            System.Diagnostics.Process.Start("result.xlsx");
        }
    }
}