MegaEditor

MegaEditor is a lightweight and portable utility that enables you to view and edit the source code of XML, CSV and INI files. It doesn't contain advanced options or configuration settings for experienced users.

It's wrapped in a single .exe file that you can drop in any part of the hard disk or copy to a USB flash drive to directly launch the program on any computer with minimum effort and no previous installers. More importantly, it doesn't add new entries to the Windows registry, create new files on the disk, or need DLLs to run. A standard file deletion is enough to get rid of it.

As far as the interface is concerned, MegaEditor has a basic window with a plain look and neatly structured layout, where you can separately work with XML, CSV and INI files in three panes.

After loading a file using the file browser (drag-and-drop is unsupported), you can check out its formatted code organized in a hierarchical tree, as well as switch to plain text mode to make changes. This is as easy as working with Windows Notepad.

On the other hand, you should know that the application doesn't implement options for saving modifications to file, whether we're taking about the original items or new XML, CSV and INI files. Instead, you can copy selected text and paste it into Notepad to save changes and create a file with any of the three extensions.

Although it hasn't received updates for a long time, MegaEditor worked smoothly on newer Windows models in our tests, without hanging, crashing or indicating errors. System resources usage was minimal.

However, it has just a couple of options that lacks some essential ones, like saving edited files. Nevertheless, you can test it for yourself, since it's free.