Install "File node " in Node-red palette

I'd like to use "File Node" in Node-Red. I expected to find it in the storage section in the palette but it isn't in my palette, I try to install using the option Manage Palette in my Node-Red application but I am not able to find/identify the node in the repository .

Could someone telling me how to find the node description to install it in my palette?. Why a don't have it as default?.

The File nodes are disabled by default in the Bluemix environment to discourage writing files to the volatile storage that will be lost whenever the app is restarted.

You can re-enable it by editing your applications bluemix-settings.js file and remove the file.js entry in the nodeExcludes option.