When you click on the downloaded file it will ask you where you want to install Sandbox. If you click the three dots to the right you can browse your computer and select where you'd like to place sandbox. After you are satisfied with where it is to install hit extract. The sandbox folder will then be created where you chose to install it. Locate the folder and enter it. Click on the link that says "Click here to start" and it should launch. To launch the carts click on the file that says "cartmode".
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When you click on the downloaded file it will ask you where you want to install Sandbox. If you click the three dots to the right you can browse your computer and select where you'd like to place sandbox. After you are satisfied with where it is to install hit extract. The sandbox folder will then be created where you chose to install it. Locate the folder and enter it. Click on the file that says "'''(clickheretostart)'''" and it should launch. To launch the carts click on the file that says "cartmode".