Getting Empty Excel export

Dears,

Am evaluating Aspose.pdf for .Net and am trying to export from PDF to EXCEL using the below code:

Document pdfDocument = new Document(@"D:\Data\NET\Media Validator\DATA COLLECTION\Station Confirmation\September 2014 Confirmations.pdf");
            pdfDocument.Save(@"D:\Data\NET\Media Validator\DATA COLLECTION\Station Confirmation\September 2014 Confirmations.xls", SaveFormat.Excel);Document pdfDocument = new Document(@"D:\Data\NET\Media Validator\DATA COLLECTION\Station Confirmation\September 2014 Confirmations.pdf");
            pdfDocument.Save(@"D:\Data\NET\Media Validator\DATA COLLECTION\Station Confirmation\September 2014 Confirmations.xls", SaveFormat.Excel);

Unfortanetely am recieving an empty excell sheet, can someone please advise what i am doing wrong that the tables are not being exported to EXCEL.

Am also attaching an example of the PDF am using, any help on the above is highly appreciated.

Regards,