These files contain the HTML and RB files of the pages' examples. Files can be downloaded and stored in the Google Sketchup plug-in file folder. Files can also be downloaded via the Ruby panel with the command 'load example.rb'. Files with the .rb extension and files with the .html extension. You can install the plugins by placing the both files into the appropriate folder.Then you have to restart SketchUp.
The default location in Windows is:
SketchUp 2017: C:\Users\YOUR USERNAME\AppData\Roaming\SketchUp\SketchUp 2017\SketchUp\Plugins
You can also create a Menu.rb file to load plugins. ( XXXXXXX.rb = Ruby File )
menu = UI.menu('Plugins')
menu.add_item("Face Drawing") { load 'XXXXXXX.rb' }
menu.add_item("Area Converter") { load 'XXXXXXX.rb' }
menu.add_item("Rotate") { load 'XXXXXXX.rb' }
menu.add_item("Drawing Class") { load 'XXXXXXX.rb' }
menu.add_item("Stairs") { load 'XXXXXXX.rb' }
menu.add_item("Table") { load 'XXXXXXX.rb' }
menu.add_item("Select And Extrude") { load 'XXXXXXX.rb' }