Xml tools plugin for notepad++ - features, download and how to install - extensible markup language (xml) helps you store and transport data which is human readable and machine independent. as oracle apps developer, you should. Xml tools plugin for notepad++. 29.10.2015 (1 votes, average: 5.00 out of another method of installation would be to download the latest version of the plugin from here and then unpack it and copy the files to the plugins directory which is located in the notepad you should see the newly added xml tools in the “plugins” menu after a. I’m getting “installation of xml tools failed” when i try to install it. this plugin was one of the reasons i decided to switch to notepad++. probably a settings issue. i have a portable installation of notepad++ so it doesn’t use the [dreaded] roaming or appdata or whatever locations. clues?.