I'm trying to upload some of the themes from the new XOOPS theme gallery.
All the files I download are .zip files.
They seem to be extracting as a *.cpgz file, which if you try to extract again becomes a

xoops_thm_defaultajax.zip
extracted:
xoops_thm_defaultajax.zip.cpgz
extracted again:
xoops_thm_defaultajax 2.zip
extracted again:
xoops_thm_defaultajax 2.zip.cpgz
this just keeps going in circles.

I'm using Os X 10.5 and extracting using the newest version of Stuffit Expander. I also tried using Archive Utility and got the same results.

hi'

Are you talking about this theme ?
https://xoops.org/modules/extgallery/public-photo.php?photoId=898

No matter for me, extraction is ok (Windows)

... you could try this link (.zip) or this one (.7z)

I don't have Stuffit

Tell me if it works