Before you download the program, make sure you have the SPIKE programming software installed.
To get the software, download the appropriate installer for your operating system from here: https://education.lego.com/en-us/downloads/spike-prime/software
Once downloaded, simply run the installer and it will set everything up for you.
To open the program we’ve provided below, just double-click the downloaded file and it should open with the SPIKE Prime software. Alternatively, you can open the SPIKE Prime software first, go to File → Open File, and select the downloaded file manually.