Try a goog tool-fix zip files,recovers information from corrupt zip files and minimizes losses while repairing damaged zip files, recovers self-extracting (SFX) files, repair ZIP files larger than 2 GB, repair ZIP files from corrupted media (floppy disks, CDs, DVDs, Zip drives, etc.),checks the integrity of data being recovered, recovers corrupt ZIP archives via the local area network, fixes the archive file error: Cannot open file: it does not appear to be a valid zip archive.
zlatan24, July 2008