Create Excel file and save as PDF. [closed]

Answer 1

What do you mean with: "it is not possible to use Excel Interop any more"?

Office 2013 still have Interop library and it works perfectly fine under .NET 4.5.1 Just add Microsoft.Office.Interop.Excel assembly to your references and you are ready to go.

using System;
using Microsoft.Office.Interop.Excel;

namespace officeInterop
{
    class Program
    {
        static void Main(string[] args)
        {
            Application app = new Application();
            Workbook wkb = app.Workbooks.Open("d:\\x.xlsx");
            wkb.ExportAsFixedFormat(XlFixedFormatType.xlTypePDF, "d:\\x.pdf");
        }
    }
}