Question: What is a CPGZ File?
Did you find a CPGZ file on your computer and wonder what program should open it? Maybe someone emailed you a CPGZ file but you're not sure how to use it. Perhaps you tried to open the CPGZ file but Windows told you that it could not open it.
Before you can open a CPGZ file (assuming it's even a file format that's intended to be viewed or edited), you'll need to determine what kind of file the .CPGZ file extension refers to.
Answer: A file with the CPGZ file extension is a Compressed UNIX CPIO Archive file.
Other types of files may also use the CPGZ file extension. If you know of any additional file formats that use the .CPGZ extension, please let me know so I can update this information.
How To Open an CPGZ File:
The easiest way to open a CPGZ file is to double-click on it and let your PC decide which default application should open the file. If no program opens the CPGZ file then you probably don't have an application installed that can view and/or edit CPGZ files.
Warning: Take great care when opening executable file formats received via email or downloaded from websites you're not familiar with. See my List of Executable File Extensions for a listing of file extensions to avoid and why.
CPGZ files are typically seen in Mac OS X and Linux systems. However, if you're running Windows and need to decompress a CPGZ file, I suggest trying PeaZip, 7-Zip, or some another file compression/decompression program that supports GZ compression.
If you know of any other Windows programs that will decompress CPGZ files, please send me a quick email and let me know the name of the program so I can update this page.
If you find that an application on your PC does try to open the CPGZ file but it's the wrong application or if you would rather have another installed program open CPGZ files, see my How To Change the Default Program for a Specific File Extension guide for making that change in Windows.
How To Convert a CPGZ File:
There are two main ways to attempt to convert a CPGZ file to another file type:
- Open the CPGZ file in its default program and choose to save the open file as another file format.
- Use a File Conversion Online Service or Software Program to convert the CPGZ file to another file format.
The first option involving opening the CPGZ file in its native program is preferable because it's both easier and will probably result in a more accurate file conversion. Of course if you don't have a program that opens CPGZ files, a third-party file conversion tool (the second option) could be very useful.
Important: You cannot usually change a file extension (like the CPGZ file extension) to one that your computer recognizes and expect the newly renamed file to be usable. An actual file format conversion using one of the methods described above must take place in most cases.
Still Having Problems Opening or Using a CPGZ File?
See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more. Let me know what kinds of problems you're having with opening or using the CPGZ file and I'll see what I can do to help.