It looks like it is just in gzip format, and you should be able to
decompress them from the terminal.
Maybe try from the command line:
unzip foo.cpgz
or whatever it's name is
or you could also try
man unzip
man gzip
unzip --help
gzip --help
This might also have some helpful pointers
https://superuser.com/questions/1374235/how-and-why-do-cpgz-files-appear-out-of-regular-zip-files
This makes it seem like it is the equivalent of a tar *.tgz file:
https://www.lifewire.com/cpgz-file-2620362
On 2025-09-02 11:30, Rick Womer wrote:
Good afternoon from Philadelphia,
A friend has sent me a series of photos in cpgz format. My Mac can’t
open them.
It can covert the format to .zip, but then can’t make sense of the
.zip file either.
I would welcome any suggestions.
Rick
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Larry Colen [email protected] http://red4est.com/lrc
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