No u are mixing up 2 ways, u got the old faston way of extracting, forget that..
and the totalcommander one, its a simple program just like winrar, to unpack stuff, BUT it needs a plugin to unpack CBF files
here is a old page i made, fist part is the extraction part
second part is how to have a undetected weap.txt
its realeased anyways so i think ill just post the link
Here u go