PM> Install-Package Spire.Office

using Spire.Pdf;
using Spire.Pdf.Utilities;
using Spire.Xls;

namespace ExtractTablesToExcel
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a PdfDocument object
            PdfDocument doc = new PdfDocument();

            //Load the sample PDF file
            doc.LoadFromFile(@"C:\Users\Administrator\Desktop\table.pdf");

            //Create a Workbook object
            Workbook workbook = new Workbook();

            //Clear default worksheets
            workbook.Worksheets.Clear();

            //Initialize an instance of PdfTableExtractor class
            PdfTableExtractor extractor = new PdfTableExtractor(doc);

            //Declare a PdfTable array 
            PdfTable[] tableList = null;

            int sheetNumber = 1;

            //Loop through the pages 
            for (int pageIndex = 0; pageIndex < doc.Pages.Count; pageIndex++)
            {
                //Extract tables from a specific page
                tableList = extractor.ExtractTable(pageIndex);

                //Determine if the table list is null
                if (tableList != null && tableList.Length > 0)
                {
                    //Loop through the table in the list
                    foreach (PdfTable table in tableList)
                    {
                        //Add a worksheet
                        Worksheet sheet = workbook.Worksheets.Add(String.Format("sheet{0}", sheetNumber));

                        //Get row number and column number of a certain table
                        int row = table.GetRowCount();
                        int column = table.GetColumnCount();

                        //Loop though the row and colunm 
                        for (int i = 0; i < row; i++)
                        {
                            for (int j = 0; j < column; j++)
                            {
                                //Get text from the specific cell
                                string text = table.GetText(i, j);

                                //Write text to a specified cell
                                sheet.Range[i + 1, j + 1].Value = text;
                            }
              
                        }
                        sheetNumber++;
                    }
                }
            }

            //Save to file
            workbook.SaveToFile("ToExcel.xlsx", ExcelVersion.Version2013);
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Utilities
Imports Spire.Xls
 
Namespace ExtractTablesToExcel
    Class Program
        Shared  Sub Main(ByVal args() As String)
            'Create a PdfDocument object
            Dim doc As PdfDocument =  New PdfDocument() 
 
            'Load the sample PDF file
            doc.LoadFromFile("C:\Users\Administrator\Desktop\table.pdf")
 
            'Create a Workbook object
            Dim workbook As Workbook =  New Workbook() 
 
            'Clear default worksheets
            workbook.Worksheets.Clear()
 
            'Initialize an instance of PdfTableExtractor class
            Dim extractor As PdfTableExtractor =  New PdfTableExtractor(doc) 
 
            'Declare a PdfTable array 
            Dim tableList() As PdfTable =  Nothing 
 
            Dim sheetNumber As Integer =  1 
 
            'Loop through the pages 
            Dim pageIndex As Integer
            For  pageIndex = 0 To  doc.Pages.Count- 1  Step  pageIndex + 1
                'Extract tables from a specific page
                tableList = extractor.ExtractTable(pageIndex)
 
                'Determine if the table list is null
                If tableList <> Nothing And tableList.Length > 0 Then
                    'Loop through the table in the list
                    Dim table As PdfTable
                    For Each table In tableList
                        'Add a worksheet
                        Dim sheet As Worksheet =  workbook.Worksheets.Add(String.Format("sheet{0}",sheetNumber)) 
 
                        'Get row number and column number of a certain table
                        Dim row As Integer =  table.GetRowCount() 
                        Dim column As Integer =  table.GetColumnCount() 
 
                        'Loop though the row and colunm 
                        Dim i As Integer
                        For  i = 0 To  row- 1  Step  i + 1
                            Dim j As Integer
                            For  j = 0 To  column- 1  Step  j + 1
                                'Get text from the specific cell
                                Dim text As String =  table.GetText(i,j) 
 
                                'Write text to a specified cell
                                sheet.Range(i + 1, j + 1).Value = text
                            Next
 
                        Next
                        sheetNumber = sheetNumber + 1
                    Next
                End If
            Next
 
            'Save to file
            workbook.SaveToFile("ToExcel.xlsx", ExcelVersion.Version2013)
        End Sub
    End Class
End Namespace