To clarify, each of Aximmetry's content packages are accessible and downloadable as a .xpack file only.
Xpack format files are only handled appropriately by Aximmetry Installer. There is no Aximmetry content uploaded as a .zip file.
Before installing any of the content packages, please make sure that Aximmetry is installed properly.
In case this issue comes up, and any user sees it as a .zip file, we ask them to provide information whether they have used any additional tool to download, or which browser they have used to download, or if they use any special file browser. As always with issues, screenshots are appreciated.
This problem happened from our experience when using download softwares like Internet download manager (IDM).
After downloading the files we need only to change file extensions to .xpack extension