The link to Xilinx downloads is broken currently in designlab.  However, after a google search for "ise webpack" I downloaded a Windows 10 installer for the Xilinx tools.  This installed virtualbox which launch the Xilinx tools in a Linux VM after registration that assumed I was a company.  When I press EDIT CIRCUIT on designlab, it asked which program to use to open ".xise" files, and of course no such program existed that Windows could find.  Could someone provide me with the correct download links?