overlord parametric

My guess is that you tried to download Kyle Martinez's script by right-clicking and saving the link, but you instead saved an HTML file. Create a new file in a plain text editor and copy the code from this page, saving the file with a .jsx extension: https://github.com/kyletmartinez/Convert-Shapes/blob/main/Convert%20Shapes.jsx

Alternatively, you should be able to right-click the "Raw" button at the top and choose "Save Link As." If you open the downloaded script file in a plain text editor and the code mentions HTML and doesn't match the code on GitHub, then the script was downloaded incorrectly.