Some times it says unexpected file format error was because the sprite pack didn't match the Flash version you were using.Like Flash 8 and Flash CS5.I guess the file turned white was because it didn't finish loading yet.I think there might be a chance the sprites are still there.To safe them,I always save them in the Dumping Grounds.No matter what happens I could just re-download it.@MrSharpSword and @Renegesjr He shouldn't press F5 because it just turns it into a blank keyframe I guess.But if he pressed F6 it will give him a normal frame.
TheDoopus
:'( Don't Worry...
Every Guy Has A Problem With Flash
Like 'Renege'
He Couldn't Use The Flash.
When He Presses 'F5' That Didn't Went To The Next Scene! The First Scene Went White!!!