The command line method should work basically every time, as it will forcibly extract even partially downloaded files.
Search & Extract
If you know the file is only partially downloaded though by way of checking md5 hash or otherwise , you really ought to just download the file again. The Unarchiver is a third party tool that can be thought of as a swiss army knife of compression formats, able to work with virtually any archive file format you can throw at it. It works in much the same way as the default Archive Utility, only running when an archive is encountered, which it quickly decompresses then quits again. On a quick side note, with Archive Utility having some crashing problems lately, there has never been a better time do grab an alternative like The Unarchiver.
For my purposes, I used the command line method, but Unarchiver was also confirmed to work just as well.
Enjoy this tip? Subscribe to the OSXDaily newsletter to get more of our great Apple tips, tricks, and important news delivered to your inbox! Enter your email address below:. Instead, click on the link, and download it from the Dropbox page that is displayed. Thanks folks, the command line thing did the trick…not sure why the dropbox download does that. Archive Utility to Open with: Stuffit Expander. To my surprise it worked a treat. This seems to indicate that the files had downloaded OK, and the problem lies elsewhere.
Thanks so much for this! Had a zip archive that was doing this but the Terminal work around solved it. I downloaded a 4 gb file several times, and tried two different browsers, safari and firefox. System Terminal said the file was corrupt…. I copied it via an external hard drive to my old Copied the open folder back to the new laptop and everything installed perfectly.
The inbuilt inflater ability of OSX does not recognise some of the modern formats of. I just downloaded a file like this. The name of the file had no extension. May be the easiest thing to try first.
It Worked! After reading your advice I tried the terminal method and worked perfectly. For Jordan. That is because your terminal defaults in that folder. You can always get to the directory you want using cd command and then do the terminal method. I have an ongoing problem with this and was hopeful after reading this thread. I have OS X Ran terminal which ran a while and did not unzip the the file.
Very frustrating, keep getting the. I was at a loss to know how to get out of the infinite loop. Downloading from another browser worked. Great tutorial! Great clearly written article. The unzip from command line option did the trick for me. Thank you! I was downloading an internet explorer image for a virtual machine from modern IE. To be specific, I was downloading IE Thanks for this!
what is a .cpgz file and how do i open it? - Apple Community
The Unarchiver free download was able to unarchive the original. It happens reliably when I create a.
It only happens with one particular server, otherwise I use this method routinely with other win servers with no problems. The file is not corrupt as far as i can tell, or incompletely copied, some sort of bug or mismatch created by this sequence of events is responsible.
I tried the Terminal workaround. It did fill in the name of the file after I dragged to the terminal window, but when I hit return, nothing seemed to happen. Where should the unzipped file be? It did not appear on the desktop or in the Terminal window. Should I look somewhere else?
The new file would be in the same location as the origin, so if you dragged it from the desktop, the new file would be on the desktop too. The new file would be where your is operating, which is usually the home folder. You can run pwd command to see your current location in terminal. Suddenly had problems opening a zip file with archive utilities, spent hours on it, read this very informative article. Downloaded Unarchiver and solved the problem…. I was investigating this same issue and found that the Windows Server box that was generating the zip file was using version 4.
Unarchiver was the answer here since it incorporated newer tools. Thanks for the tip! It helped me to export several sliders using LayerSlider for WordPress. But it unziped it anyways, once that was done I was able to create a zip easily!
This is a great tip but I have an older Macbook and the newest version of the Unarchiver does not work. Either this file is not a zipfile, or it constitutes one disk of a multi-part archive. In the latter case the central directory and zipfile comment will be found on the last disk s of this archive. Any suggestions? The Unarchiver did not unzip the cpgz file, but actually created yet another.
Also, it does not appear in my applications folder, and I cannot locate it to delete it. Now it is set to unzip all my files — but will not unzip any files with the. I get an error message that The Unarchiver cannot open this type of file. Any suggestions about how I can delete this app when it does not appear in my applications folder? Thank you. In my case, I changed the file extension from. Indepently, I also tried a third party like Derek Scott suggested above way back in , but prior to reading his comment.
In my case I tried Winzip for Mac free trial, and it worked beautifully! Nothing is as simple as advertised, in the world of electronics: It worked! Terminal totally solved this annoying issue. Thanks for the advice! Then I realised the file I was trying to extract had zero bytes. So I found another copy I had downloaded in the earlier step, which was over a gb. Thanks a lot! Terminal helped me unzip the TheUnarchiver app.. Terminal would not work…. Name required. Mail will not be published required. All Rights Reserved. Reproduction without explicit permission is prohibited.
Enter your email address below: Posted by: February 14, at 4: Caleb Grove says: February 14, at 5: Joe says: November 16, at 8: Paul says: February 25, at July 3, at 1: Derek Scott says: November 16, at Diane says: November 19, at 1: Nina says: January 4, at January 9, at 1: October 30, at Since CPGZ is the default format used for compression, the file is just being compressed and decompressed over and over again. One thing that might fix this is to just download the ZIP file again. It may not be opening correctly if the download was corrupted.
How to Extract or Uncompress a CPGZ file on a Mac
We recommend trying a different browser the second time, like Firefox , Chrome , Opera , or Safari. Another option is to run this unzip command in a terminal:. You could instead type "unzip" without the path, and then drag the file onto the terminal window to automatically write out its location. The best way to convert the files inside a CPGZ file is to first extract the files out of it using one of the file decompressors from above.
Once you have the contents of the CPGZ file, you can use a free file converter on them to convert the files to a different format. Once you have the PDF out of the archive, you can treat it like you would any other PDF file, and convert it using a document converter. What you really need to do, instead of converting the CPGZ archive to those formats, it decompresses the archive so that you can open those files normally. The same file decompression utilities we already mentioned can be used to open these CPGZ files too.