When I download the software it give me the same error every time?

Probably the problem is in the source, it really is not a good archive file.

But I would try another browser (Chrome, Firefox, etc.) and see if you get a better download.

I generally only get that when something happened during the download process to corrupt the file.

Also, 7zip beats WinZIP.

Please do the following to attempt to repair a Zip file:

Click Start, click All Programs, and click Accessories
Right click Command Prompt and choose Run as administrator
Change directories to the folder where the corrupted Zip file is located
Type: “C:\Program Files\WinZip\wzzip” -yf zipfile.zip

If the corrupted Zip file is split or spanned, 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.

Useful resources, which might become solutions have more different information than guide above…
http://itknowledgeexchange.techtarget.com/itanswers/how-to-repair-zip-files-after-zip-archive-corrupt-or-damaged/
http://www.filerepairforum.com/forum/archives/archives-aa/winzip/1497-zip-archive-error-msg-at-extracting
https://www.repairtoolbox.com/ziprepair.html Zip Repair Toolbox