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Zip File recovery

Hi all,
I'm having a re-occuring problem with some zipped files when restoring from my hard drive. A fair few won't unzip, tried in disk utility, terminal, and stuff it, and on a PC too. Anyone know any mac software that may help recover/ repair. Really need the files!
Yep Archive Utility says 'Unable to open (Error 1 -Operation not permitted) and Stuffit says 'Archive may be damaged (Error 17537).

It may just be the file has corrupted somehow but this is about the 4th time it's happened with different folders. All of which are files generated and zipped by me, not downloaded. Checked they're not locked too.

Some of the folders contain lots of files so if I could recover any part of it I'd be glad.