效果如下：

using System.Data;
using System.IO;
using System.Windows;
using Microsoft.Win32;
using ExcelDataReader;
using System.Text;
using ClosedXML.Excel;

namespace IfoxDemo
{
    public partial class SimpleWindow : Window
    {
        public SimpleWindow()
        {
            InitializeComponent();
        }

        private void OnSelectFileButtonClick(object sender, RoutedEventArgs e)
        {
            OpenFileDialog openFileDialog = new OpenFileDialog
            {
                Filter = "Excel Files|*.xls;*.xlsx;*.xlsm"
            };

            if (openFileDialog.ShowDialog() == true)
            {
                string filePath = openFileDialog.FileName;
                System.Data.DataTable dataTable = ReadExcelFile(filePath);
                //dataGrid.HeadersVisibility = DataGridHeadersVisibility.None; // Hide the header row
                dataGrid.ItemsSource = dataTable.DefaultView;
            }
        }

        private void OnSaveFileButtonClick(object sender, RoutedEventArgs e)
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog
            {
                Filter = "Excel Files|*.xlsx",
                DefaultExt = "xlsx"
            };

            if (saveFileDialog.ShowDialog() == true)
            {
                string filePath = saveFileDialog.FileName;
                SaveDataGridToExcel(filePath);
            }
        }

        private System.Data.DataTable ReadExcelFile(string filePath)
        {
            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
            using (var stream = File.Open(filePath, FileMode.Open, FileAccess.Read))
            {
                using (var reader = ExcelReaderFactory.CreateReader(stream))
                {
                    var result = reader.AsDataSet();
                    return result.Tables[0];
                }
            }
        }

        private void SaveDataGridToExcel(string filePath)
        {
            var dataTable = ((DataView)dataGrid.ItemsSource).ToTable();
            // Remove the first row
      

            using (var workbook = new XLWorkbook())
            {
                var worksheet = workbook.Worksheets.Add(dataTable, "Sheet1");
                workbook.SaveAs(filePath);
            }
        }
    }
}

<Window x:Class="IfoxDemo.SimpleWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="SimpleWindow" Height="500" Width="600">
    <Grid>
        <StackPanel>
            <Button Content="选择Excel文件" Margin="10" Click="OnSelectFileButtonClick"/>
            <Button Content="保存修改后的数据" Margin="10" Click="OnSaveFileButtonClick"/>
            <DataGrid Name="dataGrid" AutoGenerateColumns="True" Margin="10" 
                      HorizontalScrollBarVisibility="Visible" VerticalScrollBarVisibility="Visible" 
                      Height="300" CanUserResizeColumns="True" />
        </StackPanel>
    </Grid>
</Window>

using System.Collections;
using System.Collections.Generic;
using static IFoxCAD.Cad.OpFilter;

namespace IfoxDemo
{
    public class 生成迷宫
    {
        [CommandMethod("xx")]
        public void Demo()
        {
            using var tr = new DBTrans();
            tr.Database.EraseAll();
            Env.Editor.WriteMessage("开始生成迷宫1");
            if (System.Windows.Application.Current == null)
            {
                new System.Windows.Application { ShutdownMode = ShutdownMode.OnExplicitShutdown };
            }

            // 显示WPF窗口
            System.Windows.Application.Current.Dispatcher.Invoke(() =>
            {
                var window = new SimpleWindow();
                window.ShowDialog();
            });
        }
    }
  
}