How to save in .s2z Format

[ErDiaulo]

I' have done a mod. and I want to post it in the forum how can I save all the files in .s2z format?

p.s. sorry for my noobness:scou::scou::scou:

[Veldt]

right click -> send to -> compressed folder & rename the extension to .s2z, if it doesnt work make sure your winrar version is 4.10 or older