Write an article based on this "Click on the Start button . Type %APPDATA% in the search bar and press ↵ Enter. Open the ".minecraft" folder. Create a "mods" folder (if needed). Drag and drop the Pixelmon .jar file into the "mods" folder."
It's the icon with the Windows logo. By default, it's in the lower-left corner of your Windows Desktop. This opens the folder that contains your Minecraft install folder in Windows Explorer. This is your Minecraft install folder on Windows. To locate the Minecraft folder on Mac, open the Finder and click Go.  Click Go to Folder.  Type "~/Library/Application Support/minecraft" in the bar and click Go. If you have never installed a Minecraft mod, you will need to create a mods folder.  To do so, click any blank space in the Minecraft folder and click New followed by Folder or New Folder.  Name the new folder "mods" with all lowercase letters.  If you already have a mods folder, simply click it to open it. Once you've created or opened your mods folder, drag the Pixelmon .jar file from your desktop or Downloads folder into the mods folder.