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.
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
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.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
Advanced XML Converter - Advanced XML Converter is an easy to use XML converter that convert the XML file format into multiple file formats particularly in XLS format.
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.