Add Middleware

builder.Services.ExcelFeature();

Excel Feature

using KhatiExcel.Feature;
using KhatiExcelImplementation.Model;
using Microsoft.AspNetCore.Mvc;
namespace KhatiExcelImplementation.Controllers
{
    [ApiController]
    [Route("api/[controller]/[action]")]
    public class ExcelFeatureController : Controller
    {
        private readonly ILoadExcel _loadExcel;
        public ExcelFeatureController(ILoadExcel loadExcel)
        {
            _loadExcel = loadExcel;
        }
        [HttpPost]
        public IActionResult ReadExcel(IFormFile file)
        {
            var result = _loadExcel.Fetch(file,"Sheet1");
            return Ok(result.data);
        }
        [HttpGet]
        public IActionResult ReadExcelPath()
        {
            var result = _loadExcel.Fetch("C:/Users/BS01389/Downloads/BiologyBooks.xlsx", "Sheet1");
            return Ok(result.data);
        }
        [HttpPost]
        public IActionResult SubmitBook([FromBody] List<Book> model)
        {
            var result = _loadExcel.ListToExcelBase64("BookInfo",new List<string>() { "Id","Title","Price" }, model);
            return Ok(result.base64);
        }
    }
}

Package Source

Package Source Link

Package Implementation Link

Package Implementation Link