The sample source codes below show how to convert from PDF to XLS file for MS Excel in C# and Visual Basic .NET using Bytescout PDF Extractor SDK.
C#

using System.IO;
using Bytescout.PDFExtractor;
using System.Diagnostics;

<span data-scayt_word="namespace" data-scaytid="3">namespace</span> <span data-scayt_word="PDF2CSV2XLS" data-scaytid="4">PDF2CSV2XLS</span>
{

    class Program
    {
        static void Main(string[] <span data-scayt_word="args" data-scaytid="5">args</span>)
        {
            // Create Bytescout.PDFExtractor.XLSExtractor instance
            <span data-scayt_word="CSVExtractor" data-scaytid="6">CSVExtractor</span> extractor = new <span data-scayt_word="XLSExtractor" data-scaytid="7">XLSExtractor</span>();
            extractor.RegistrationName = "demo";
            extractor.RegistrationKey = "demo";

			File.Delete("output.xls");

            // Load sample PDF document
            extractor.LoadDocumentFromFile("sample3.pdf");
			
			// Save the spreadsheet to file
			extractor.SaveAsXLSFile("output.xls");

			// Open the spreadsheet in default associated application
            Process.Start("output.xls");
        }
    }
}

VB.NET

Imports System.IO
Imports Bytescout.PDFExtractor
Imports System.Diagnostics

Class Program
	Friend Shared Sub Main(<span data-scayt_word="args" data-scaytid="18">args</span> As String())

        ' Create Bytescout.PDFExtractor.XLSExtractor instance

		Dim extractor As New <span data-scayt_word="XLSExtractor" data-scaytid="19">XLSExtractor</span>()
		extractor.RegistrationName = "demo"
		extractor.RegistrationKey = "demo"

		File.Delete("output.xls")

		' Load sample PDF document
		extractor.LoadDocumentFromFile("sample3.pdf")

		' Save the spreadsheet to file
		extarctor.SaveAsXLSFile("output.xls")

		' Open the spreadsheet in default associated application
		Process.Start("output.xls")
	End Sub
End Class