XcomUtil is the longest running modification / tool ever created for the X-COM games. After more then 12 years of development Scott T Jones have decided to let others carry on his legacy. David Jones (aka. BladeFireLight) will step up, and he has already started working on the next version. You can read the full "press release" over at XCOMUFO.com
If you would like to read more about what XcomUtil does, head over to the official website. You can download the tool from our files section.