用NPOI读取Blazor wasm中的Excel文件

using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;
using System.IO;

public class ExcelReader
{
    public static void ReadExcelFile(string filePath)
    {
        using (FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
        {
            IWorkbook workbook = new XSSFWorkbook(fileStream);
            ISheet sheet = workbook.GetSheetAt(0);

            for (int rowIndex = 0; rowIndex <= sheet.LastRowNum; rowIndex++)
            {
                IRow row = sheet.GetRow(rowIndex);
                if (row != null)
                {
                    for (int cellIndex = 0; cellIndex < row.LastCellNum; cellIndex++)
                    {
                        ICell cell = row.GetCell(cellIndex);
                        if (cell != null)
                        {
                            string cellValue = cell.ToString();
                            // 处理每个单元格的数据
                        }
                    }
                }
            }
        }
    }
}