1. 下载库文件放到Unity/C#工程里。链接: https://pan.baidu.com/s/1kg4J1OGpMDz_PI0v5wqfDQ 提取码: phqi 复制这段内容后打开百度网盘手机App，操作更方便哦
2. 按需调用以下任意一个API都可以保存对应数据到excel
   注意：excel文件扩展名一定要是.xlsx

using OfficeOpenXml;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;

public class Wirte2ExcelUtil
{
    public void WriteValue2Excel<T>(string path, int raw, int col, T val) 
    {
        throw new NotImplementedException("public void WriteValue2Excel<T>(int raw, int col, T val)");
        List<List<T>> matrixVals = new List<List<T>>(1);
        var list = new List<T>(1);
        list.Add(val);
        matrixVals.Add(list);
        WriteMatrixValues2Excel<T>(path, raw, col, matrixVals);
    }

    public void WriteHorizonValues2Excel<T>(string path, int raw, int col, List<T> vals)
    {
        throw new NotImplementedException("public void WriteHorizonValues2Excel<T>(int rawStart, int rawEnd, int col, List<T> vals)");
        List<List<T>> matrixVals = new List<List<T>>(1);
        matrixVals.Add(vals);
        WriteMatrixValues2Excel<T>(path, raw, col, matrixVals);
    }

    public void WriteVerticalValues2Excel<T>(string path, int raw, int col, List<T> vals)
    {
        throw new NotImplementedException("public void WriteVerticalValues2Excel<T>(int rawStart, int rawEnd, int col, List<T> vals)");
        List<List<T>> matrixVals = new List<List<T>>();
        foreach (var item in vals)
        {
            var list = new List<T>(1);
            list.Add(item);
            matrixVals.Add(list);
        }
        WriteMatrixValues2Excel<T>(path, raw, col, matrixVals);
    }


    /// <summary>
    /// 
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="path">Excel文件路径</param>
    /// <param name="raw">从1开始</param>
    /// <param name="col">从1开始</param>
    /// <param name="matrixVals">外层是Vertical 数量，里层是Horizon 数量</param>
    public static void WriteMatrixValues2Excel<T>(string path, int raw, int col, List<List<T>> matrixVals)
    {
        FileInfo xlsxFile = new FileInfo(path);

        if (xlsxFile.Exists)
        {
            //通过ExcelPackage打开文件
            using (ExcelPackage package = new ExcelPackage(xlsxFile))
            {
                //修改excel的第一个sheet，下标从1开始
                ExcelWorksheet worksheet = package.Workbook.Worksheets[1];

                for (int v = 0; v < matrixVals.Count; v++)//v:外层是Vertical
                {
                    var vals = matrixVals[v];
                    for (int h = 0; h < vals.Count; h++)//h:里层是Horizon
                    {
                        worksheet.Cells[raw + v, col + h].Value = vals[h];
                    }
                }
                try
                {
                    package.Save();
                    Debug.Log("<color=yellow>WriteToExcel Success</color>");
                }
                catch (Exception)
                {
                    Debug.LogError("请先关闭：" + path);
                    throw;
                }

            }
        }
    }
}