Unix/X-Window environment. The development has been made on Linux and thus Linux is the only platform that supports all the features. X-Files has been tested also on Silicon Graphics Indy, HP 700 workstation and Digital Alpha workstation.
X-Files is entirely written in
Tcl/Tk and requires the versions 7.4/4.0 or higher. No extensions have been used so none are needed.
X-Files supports a 3-button mouse which is therefor recommended. The program works with 2-button mouses but without the 3-button emulation you will not get everything out of the X-Files.