GUIOpener v.2.0.1 1.8 is a release file of the Minecraft plugin GUIOpener, made for Minecraft 1.8. It was published on June 15, 2017 and is 0 MB in size. For the full description, screenshots and every other version, visit the GUIOpener plugin page.
How to install: Put the .jar into the plugins folder of your Paper, Spigot or Bukkit server and restart the server.