I'm not sure what you mean by "end", but looking at your previous thread it seems that you want to export a shorter movie than what you have on the timeline. If you have 17 minutes on the timeline and you want to export only 6 minutes to a video format like mp4 or wmv, you have to either delete everything after where you want your movie to end, or create a range and then export the range only. This is one of the parameters on the export screen.
I hope that you understand about exporting. Do you?