User profile for user: Kaz18
Kaz18 Author
User level: Level 1
10 points

can't open .zip, only starts .cpgz cycle

Firstly, sorry if I'm posting this in the wrong spot, I'm new. But I also heard this problem may be due to leopard.

I was emailed a .zip file that I really want to open but when I try to unzip it only creates a .cpgz file then then ..cpgz or another ..2.zip
I've tried double clicking the .zip and opening normaly and stuffit and opening it in windows xp
BTW it's a file I'll need to open in my xp partition if that makes a difference, (unfortunately I sometimes need to use xp as some apps such as autocad don't run mac) i just don't connect xp to the internet.

mbpro, Mac OS X (10.5.1), 1.83GHz, 2GB ram

Posted on Mar 17, 2008 7:08 PM

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User profile for user: Kaz18
Kaz18 Author
User level: Level 1
10 points

Mar 17, 2008 10:11 PM in response to Tony T1

Thanx, but it didn't work the same thing just keeps happening. Nothing happens when I extract the .zip file, it doesnt even ask for an extraction location, just doesn't do anything. But when I extract the .cpgz file it just extracts another .zip file that i cant extract
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User profile for user: MacNut2
MacNut2
User level: Level 1
5 points

Mar 18, 2008 8:20 PM in response to Kaz18

I just encountered the same problem. In my case, the original file was surely a PC user and the zipped extension is .pptx. I use Stuffit to unzip and get the .cpgz cycle.

I just tried changing the original extension of .pptx to .zip and it unzipped properly!

Message was edited by: MacNut2
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User profile for user: dechamp
dechamp
User level: Level 4
3,495 points

Mar 18, 2008 11:31 PM in response to Kaz18

Are you saying that all zip files are having problems or is just one file failing to unzip?

Maybe the file is corrupt or was made by a pc user with a proprietary zip format that is not compatible?

Make your own zip file and see if you can open it.

Download another zip file and see if you can open it.
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User profile for user: pvangage
pvangage
User level: Level 1
0 points

Apr 3, 2008 8:30 PM in response to Antonio Leites

Can do 1 better.
File downloaded off ftp server using Transmit. Downloaded in Binary format. Filename XXXX.ZIP and it unzipped. Copied this file and the enclosing folder to another mac so that folders could be renamed to our filenaming convention (File was untouched). Folder copied back and now it goes into .cpgz.

Checked the original download to the "copied" version - exact same mod dates, exact same permissions, exact same file size - yet run a tail or head command in shell and I get nothing from the renamed file. Tried to open files in BBEdit to see if there anything -- the "copied file" displays nothing, not even gibberish I would have expected!
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User profile for user: Stephen Kay
Stephen Kay
User level: Level 1
112 points

Apr 12, 2008 4:38 PM in response to Kaz18

Speaking of this automatic unzipping, is there anyway to disable this?

For example, say I want to download a .zip archive, and have it stay a .zip archive so I can upload it somewhere else? The problem with re-zipping it is that I don't want it to be a Mac .zip file with bogus resource files and DS_STORE files in it for Windows users. If I download a Windows .zip, I want to keep it as a .zip that was zipped on Windows, if you follow me.
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User profile for user: Stephen Kay
Stephen Kay
User level: Level 1
112 points

Apr 12, 2008 8:46 PM in response to Stephen Kay

OK, I'll answer my own question for anyone who sees this:

You can either disable the automatic opening of "safe" files in the General Preferences section of Safari, or I also discovered that, even when you have the Preferences set to automatically unzip the files, you can override this by control-clicking on the file and choosing "Download Linked File as..."
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User profile for user: onthow
onthow
User level: Level 1
4 points

Jun 17, 2008 5:03 PM in response to Kaz18

My user just encountered this zip/cpgz cycle as well, and I think this is what happened.

He was attempting to download a zip file that was only available via BitTorrent. So he downloaded the corresponding 24 KB torrent file and double clicked it. This opened Opera (his default application for torrent files), and the actual 62 MB zip file started downloading. But unlike a conventional downloading file that ends in .download and shows a small progress bar in the icon, the BitTorrent downloading file looks indistinguishable from a completely downloaded file: it ends in .zip and has the zip icon even though it is still downloading. So my user was attempting to unzip a 62 MB file when only about 50 MB had downloaded.

As of this writing, the file is still downloading. But I suspect once completely downloaded, he will be able to unzip the file normally using Stuffit Expander.
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User profile for user: carlomac
carlomac
User level: Level 1
0 points

Jun 23, 2008 9:51 PM in response to MacNut2

this worked for me too. when you double click on the original .zip file and get a .cpgz , alter the file extension of the newly created .cpgz to be .zip. then double click on this and it should extract properly. dont know whats going on but at least it works.
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User profile for user: euskir
euskir
User level: Level 3
724 points

Jul 7, 2008 1:08 PM in response to Kaz18

I had the the "unzipping" problem with Quicksilver (the launcher), the downloaded file was "QS.3815.dmg.bz2", and trying to open that, well, the "cycle with no end", but just removing the"bz2" was enough to solve the issue.
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User profile for user: Victoria Herring
Victoria Herring
User level: Level 2
387 points

Jul 21, 2008 11:33 AM in response to euskir

sad to say, I'm now having this issue and nothing seems to work = cpgz files and zip files replicate like rabbits -- I did change a cpgz file back to a zip file and rename it but it still replicated it...I'm downloading from a business website and it should work, but it's probably created by a Windows zipper and not easily openable by me [using Leopard] - this is the very first time this has happened.
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can't open .zip, only starts .cpgz cycle

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