protected void btn_leer_Click(object sender, EventArgs e)
{
if (FileUpload1.HasFile)
{
if (Path.GetExtension(FileUpload1.FileName) == ".xlsx")
{
ExcelPackage package = new ExcelPackage(FileUpload1.FileContent);
GridView1.DataSource = package.ToDataTable();
GridView1.DataBind();
}
}
}
