User blog:Lykrast/How to open icon packs ?

I found the icons packs in LoL's folders (I know, champions artworks and spell icons are in .png in another folder), but I don't know how to open them... anyone help ?

For me they are in C:\Riot Games\League of Legends\RADS\projects\lol_air_client\releases\0.0.0.241\deploy\assets\imagePacks and are .swf files.