For the people who dont know how to use this,
1) you need an archiver app that likes RAR files. i suggest 7zip.
2) you need some kind of app that likes skinning your files. i suggest iconStudio or something like that.
3) this is just a collection of PNG's - you should either a) use an os that likes PNGs or convert them to .ico files with png2ico or IconDeveloper pro