How can i convert an XLWorkbook to a PDF file?

i'm actually working on a project using Entity Framework 4.8.

I'm using "ClosedXML" to generate a table and then pass it as xlxs file; i now would like to take it and convert it to a pdf file if possible. here is my code:

    public async Task<IHttpActionResult> GetExportTableAsync()
    {
        using (MYdb Masterdb = new MYdb ())
        {
            var Requests = Masterdb.Requests.ToList();

            XLWorkbook wb = new XLWorkbook();
            DataTable dt = ToDataTable(Requests);
            wb.Worksheets.Add(dt, "Requests");

            return Ok(wb);
        }
    }


public DataTable ToDataTable<T>(List<T> items)
{
    DataTable dataTable = new DataTable(typeof(T).Name);
    //Get all the properties
    PropertyInfo[] Props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);
    foreach (PropertyInfo prop in Props)
    {
        //Setting column names as Property names
        dataTable.Columns.Add(prop.Name);
    }
    foreach (T item in items)
    {
        var values = new object[Props.Length];
        for (int i = 0; i < Props.Length; i++)
        {
            //inserting property values to datatable rows
            values[i] = Props[i].GetValue(item, null);
        }
        dataTable.Rows.Add(values);
    }
    //put a breakpoint here and check datatable
    return dataTable;
}