How can you change the format thing of a video?

My friend and I made a video on Windows Movie Maker, and I was gunna try to put it on facebook. But, apparently it doesnt support the format of it er whatever? I have no idea what the format is right now, but I'm supposed to have it as any of the following;;;;

3g2 (Mobile Video)

3gp (Mobile Video)

3gpp (Mobile Video)

asf (Windows Media Video)

avi (AVI Video)

dat (MPEG Video)

flv (Flash Video)

m4v (MPEG-4 Video)

mkv (Matroska Format)

mod (MOD Video)

mov (QuickTime Movie)

mp4 (MPEG-4 Video)

mpe (MPEG Video)

mpeg (MPEG Video)

mpeg4 (MPEG-4 Video)

mpg (MPEG Video)

nsv (Nullsoft Video)

ogm (Ogg Media Format)

ogv (Ogg Video Format)

qt (QuickTime Movie)

tod (TOD Video)

vob (DVD Video)How can you change the format thing of a video?
Well, if you made it in windows movie maker then it's probably a wmv file. Try using something like SUPER to convert it into one of those file types.



http://en.wikipedia.org/wiki/SUPER_(soft