We have found 8 software records in our database eligible for .xlsx to .xml file format conversion.
The easiest way to export data from MS Excel spreadsheet (.xlsx) and save them in XML format is of course to just use the Save as.. function in Excel. The online version of Excel can be most likely used for the same thing.
Other than that, many programs nowadays support formats from MS Excel and can likely export the data to numerous formats, including XML.
XLSX
Files with xlsx extension are s used by Microsoft Excel for its workbooks (spreadsheets) in Office Open XML format. XLSX is the latest spreadsheet format used by Excel with the adoption of XML formatting first used in Office 2007. While older xls files were in proprietary binary file format, xlsx spreadsheets use a somewhat altered XML scheme.
XML
An xml file extension is commonly used for files written in Extensible Markup Language. An xml file is used in various areas of computer industry and many program languages are just derivatives of XML. These xml files can be opened and edited in any text editor or IDE.