PLE on Mac Catalina v.10.15.5

Hi All,
I wondering that how to install PLE on Mac Catalina v.10.15.5 ??
I am able to download the latest version but nothing happens when I double click ...
isotropix -> isotropix_clarisse_ifx_ifx_4.0_sp -> clarisse
thanks!
I wondering that how to install PLE on Mac Catalina v.10.15.5 ??
I am able to download the latest version but nothing happens when I double click ...
isotropix -> isotropix_clarisse_ifx_ifx_4.0_sp -> clarisse
thanks!