XNA 4.0 - Load texture without background

Question

how to draw sprite without background. For example display this:

without green background.

I'm using XNA 4.0.

I don't want to edit all textures :/

Thanks ;)

SOLUTION !
http://i.imgur.com/k6ufNYU.jpg
Image Properties -> Content Processor -> Color Key Color - it's a colow which we will remove.

Answer 1

You need to save it as a .PNG From .net Paint and remove the alpha, so that when you import it it is blank.

you can find .Net paint here