Once you've downloaded the STEX Collection Vol 1, 2, 3, extract the archive files using a tool like WinRAR or 7-Zip. The archive files will likely be in a .zip or .rar format.
, hand-picked from the . While the individual files are free to download manually on the site, the bundled "Collections" are offered as a gift for donating to help keep the community running. Collection Overview & Contents stex collection vol 1 2 3 for simcity 4 free install