Trouble unzipping files on my iMac

Ok, I downloaded  a file " 3.cpgz" (no quotes) to my Mac and clicked on it once and nothing happened (no unzipping).

Please assist. Do I have to set or check something or ...?

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chilternPCConnect With a Mentor Commented:
you haven't put the error message. up.

if you are downloading the zip file , sometimes the Mac automatically unzips them.
instead of clicking on the link,try pressing the <ctrl> key down then clicking on the link and it will give you a list of options of what to do with that file, choose the one that says 'download files .."  if the file name is then save it then unzip it when its downloaded.
Chris WongCommented:
How to Open a Zip File That Turns Into a CPGZ
Use the command line unzip tool

Run Terminal, which is found in the /Applications/Utilities folder
Find the .zip file in the Finder and have it easily accessible
At the command line type “unzip ” followed by a space, then drag and drop the .cpgz or .zip file into the terminal window to automatically enter the full path to that file, then hit return
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bark1Author Commented:

Ok. I did what you requested and got error message--see below. According to the company, the zip file should have no problems opening on a Mac and placing all files in a folder.

Please continue to assist.

I don't see your error message.

Is the company telling you that it's a .zip file?  Then you might just try downloading it again.  The .cpgz is an error.  When you've downloaded, go to the command line and run unzip.  Don't double click on it.
bark1Author Commented:
Here is the error message I got after running Terminal, entering unzip, then space then dragging the file, then return.

Any suggestions?

What command did you type, and what error message did you get?
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