Please do the following to attempt to repair a Zip file or you may apply following topics in case your .zip archive is hardly corrupted
http://www.reddit.com/r/software/comments/2iqnap/zip_file_corrupt/http://itknowledgeexchange.techtarget.com/itanswers/how-to-repair-zip-files-after-zip-archive-corrupt-or-damaged/https://www.repairtoolbox.com/ziprepair.html Zip Repair Toolbox
Please do the following to attempt to repair a Zip file:
1. Open an administrator Command Prompt window
Windows 10 and Windows 8.1
1. Right click the start button
2. Click Command Prompt (Admin)
Windows 7 and Windows Vista
3. Click Start, click All Programs, and click Accessories
4. Right click Command Prompt and choose Run as administrator
2. Change directories to the folder where the corrupted Zip file is located
3. Type: "C:\Program Files\WinZip\wzzip" -yf zipfile.zip
4. Press Enter on the keyboard
Substitute the actual drive letter and folder where WinZip is installed if different than above and also use the real Zip file name in the place of zipfile.zip. The double quotes in the example above are necessary due to the space between "Program" and "Files".
For a split or spanned Zip file, use the following command instead:
"C:\Program Files\WinZip\wzzip" -yfs zipfile.zip
WZZIP will create a new Zip file with a FIXED suffix in the file name. The original Zip file will not be modified. Only the data in the original Zip file is used.
The FIXED Zip file is structurally sound but the data may still be corrupt. WZZIP does not fix the zipped data itself. If the zipped data has a CRC error or the zipped data is corrupt, then the resulting fixed Zip file will still be corrupt.