The attached XLS failed to convert to PDF, giving the following exception: Unhandled Exception: Aspose.Cells.CellsException: This Excel files contains BIFF7(Excel95 or earlier file format) records. at ?.?.?(† ?) …...application is a 7x24 batch process that receives incoming documents...(plain text files, fax TIFF, MS/Word doc, MS/Excel xls, etc.), and...