GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
############################################################################# ## #W readall.g The XMODALG package Zekeriya Arvasi #W & Alper Odabas ## version 1.12, 10/11/2015 ## #Y Copyright (C) 2014-2015, Zekeriya Arvasi & Alper Odabas, ## LoadPackage( "xmodalg", false ); xmodalg_examples_dir := DirectoriesPackageLibrary( "xmodalg", "examples" ); Read( Filename( xmodalg_examples_dir, "xmod.g" ) ); Read( Filename( xmodalg_examples_dir, "cat1.g" ) );