Create Excel file in ASP.NET MVC

using Syncfusion.XlsIO;

Imports Syncfusion.XlsIO

@{Html.BeginForm("CreateDocument", "Home", FormMethod.Get);
    {
        <div>
            <input type="submit" value="Create Document" style="width:150px;height:27px" />
        </div>
    }
    Html.EndForm();
}

@Html.BeginForm("CreateDocument", "Home", FormMethod.Get)
<div>
    <input type="submit" value="Create Document" style="width:150px;height:27px" />
</div>
Html.EndForm();

public void CreateDocument()
{
    //Create an instance of ExcelEngine
    using (ExcelEngine excelEngine = new ExcelEngine())
    {
        //Set the default application version as Excel 2016
        excelEngine.Excel.DefaultVersion = ExcelVersion.Excel2016;
 
        //Create a workbook with a worksheet
        IWorkbook workbook = excelEngine.Excel.Workbooks.Create(1);
 
        //Access first worksheet from the workbook instance
        IWorksheet worksheet = workbook.Worksheets[0];
 
        //Insert sample text into cell “A1”
        worksheet.Range["A1"].Text = "Hello World";
 
        //Save the workbook to disk in xlsx format
        workbook.SaveAs("Sample.xlsx", ExcelSaveType.SaveAsXLS, HttpContext.ApplicationInstance.Response, ExcelDownloadType.Open);
    }
}

Public Sub CreateDocument()
    'Create an instance of ExcelEngine
    Using excelEngine As ExcelEngine = New ExcelEngine
 
        'Set the default application version as Excel 2016
        excelEngine.Excel.DefaultVersion = ExcelVersion.Excel2016
 
        'Create a workbook with a worksheet
        Dim workbook As IWorkbook = excelEngine.Excel.Workbooks.Create(1)
 
        'Access first worksheet from the workbook instance
        Dim worksheet As IWorksheet = workbook.Worksheets(0)
 
        'Insert sample text into cell “A1”
        worksheet.Range("A1").Text = "Hello World"
 
        'Save the workbook to disk in xlsx format
        workbook.SaveAs("Sample.xlsx", ExcelSaveType.SaveAsXLS, HttpContext.ApplicationInstance.Response, ExcelDownloadType.Open)
 
    End Using
End Sub