While the Simple USA dataset is in industry standard shapefile format, to open the Simple USA project, you should first make sure you have Simple GIS Client installed on your machine. You can download the latest Simple GIS Client version here Simple GIS Client Download. To begin your download, click the "Download Now" button located in the bottom center of this box. Depending upon the browser you are using, you may be presented with different options as described below:
When you launch the SimpleUSAInstall.exe , select the folder location to download the compressed data files and click the "Install" button. This will begin the download and installation process.
Click the "Download Now" below to download the Simple USA Installer. Once downloaded, run the installer and follow the on-screen prompts per the installation notes below to complete your installation. Note: If you get an error running the installer, try temporarily disabling any antivirus software running on your machine. Some antivirus software will prevent the installer from completing successfully.