unzipping (a .zip file) produces (a .cpzip file)

[Daniel Drijard]

Hello,

A friend of mine has a problem he does not understand. He requested help from me, but I am helpless. I hope somebody could help.
We are both using Macs from APPLE system.
I sent him by email a folder containing a few files. My email system (MAIL) decided to group these files into a .zip file. After reception, my friend 2-clicked this file and got a new file with the extension .cpzip. 2-clicking this file produces a file with the extension .zip. This is evidently endless !
Searching internet, I did not find which software may like this extension.
Please help us.

Cordially,
Daniel

Daniel Drijard
Thoiry téléphone :
04 50 41 22 75
international
+33/4 50 41 22 75
Courriel :
***@cern.ch<mailto:***@cern.ch>
Thoiry F-01710
48, rue des Savoies

[Markus Winter]

Try right-clicking or option clicking on it and select decompress from the menu

If that does not work install The Unarchiver and try decompressing it with that.

Take care

MfG

Markus

Sent from my iPad

[emile.a.schwarz]

The built-in MacOS zip application is know (by me at least) to do that.

 

Use instead the Unarchiver from the App Store. Either right-click and choose Open with The Unarchiver or drop the zip file onto The Unarchiver application Icon or at last, change the file extension to cbz.

 

BTW: that application is free.

 

I hope this help.

 

Emile

 

 

Message du 06/04/18 19:54
De : "Daniel Drijard"
A : "Nug"
Objet : unzipping (a .zip file) produces (a .cpzip file)
Hello, 

   A friend of mine has a problem he does not understand. He requested help from me, but I am helpless. I hope somebody could help. 
   We are both using Macs from APPLE system.
   I sent him by email a folder containing a few files. My email system (MAIL) decided to group these files into a .zip file. After reception, my friend 2-clicked this file and got a new file with the extension .cpzip. 2-clicking this file produces a file with the extension .zip. This is evidently endless !
   Searching internet, I did not find which software may like this extension. 
   Please help us. 
 
Cordially, 
Daniel







Daniel Drijard
Thoiry téléphone : 
  04 50 41 22 75
    international
  +33/4 50 41 22 75
Courriel :
   ***@cern.ch
Thoiry F-01710
   48, rue des Savoies

[Emile Schwarz]

If the built-in application cannot uncompress a zip file (for whatever reason, espcecially) because it does not recognize that specific zip compression shema, it compress it to .cpzip.
As simple as that.
To uncompress this kind of file, use the trick I already shared (The Unarchiver in the App Store): change the extension to cbz.
Emile
Le vendredi 6 avril 2018 19:54:51 UTC+2, Daniel Drijard <***@cern.ch> a écrit :

Hello, 
   A friend of mine has a problem he does not understand. He requested help from me, but I am helpless. I hope somebody could help.    We are both using Macs from APPLE system.   I sent him by email a folder containing a few files. My email system (MAIL) decided to group these files into a .zip file. After reception, my friend 2-clicked this file and got a new file with the extension .cpzip. 2-clicking this file produces a file with the extension .zip. This is evidently endless !   Searching internet, I did not find which software may like this extension.    Please help us. 
Cordially, Daniel
Daniel Drijard
Thoiry téléphone :   04 50 41 22 75    international  +33/4 50 41 22 75
Courriel :   ***@cern.ch
Thoiry F-01710   48, rue des Savoies