SDR software where can I dowload it?

What's the sofware do you use for this files? there's a free download version??

It's called Smartdraw... http://www.smartdraw.com/examples/fpn-other/index.htm For immediate download: http://www.smartdraw.com/downloads/download.asp

there's no version for Mac OSX??

No. Unfortunately. Do a search on this site for mac software. I can't remember where, but there's a program of some sorts that you should be able to use. :(

ok. thanks!