ZAMZAR XLS to XML - ZAMZAR XLS to XML is the web based free conversion system by the ZAMZAR that support for the multiple file conversion.
PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.
XLS to XML - XLS to XML is the name of a portable and cross-platform application for converting the XML file to the XLS and vice versa.
DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more
XML Converter Standard Edition - XML Converter Standard Edition is a way to transform the data stored in the XML format to XLS format within few minutes.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request