How do I make an animated texture?

I want to make an animated texture to put in my map but I don’t know how to make one.
I have VTF edit, does that help? do I have to use a different program? or do it the SDK way?
It would be great if any of you guys can help!
I know the code to make the VMT but I need to know how to make a VTF

Material Creation
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Terrenteller just beat me, but try this tutorial^.

Although I will add, if you want an animated scrolling texture, you should use something along the lines of this:

	$basetexture *<texture directory>*
	$translucent 1
	texturescrollvar "$baseTextureTransform"
	texturescrollrate .2
	texturescrollangle 180