I have had that problem for most of the year, but I´ve found a good enough solution on Windows. Surprisingly, MS Office Excel 2003 and later versions support editing XML better than ever many Visual Studio editions. If you already have Excel on your computer give it a try. You can open the XML and edit it easily. In 2003, the only problem is adding new fields, which should be added on Notepad before opening on Excel. Once the XML is edited as an Excel sheet, you can filter, replace, etc, easily