Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
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.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
RoxyApps Spreadsheet Conversion Tool - Converts csv, et, numbers, xls, xlsx, ods and other spreadsheet files to png, pdf, html, jpg, and other formats
Apple Numbers - Numbers lets you build beautiful spreadsheets on a Mac, iPad, or iPhone — or on a PC using iWork for iCloud. And it’s compatible with Apple Pencil.
Easy XML Converter - Easy XML Converter is a the name of a free and simple XML converter that make its users able to get the XML file converted in multiple formats in addition to Excel.