corrupted how exactly?
but anyhow, what u can try;
-get 7zip file manager. it'l try to open even corrupt archives without a closed md5 and u can get a few of the fiels.
-thats the easy way.
also, try to use 7z extensions for archives. ive noticed my rar, zip files get corrupt just sitting on a hard drive. ive neva rily investigated how it happens due to time limits.
outside of that, you'd have to be a programer to write algos to take out the files one by one