.gcz file: how to open it on Windows

2 Windows apps register the .gcz extension. Install one of them to open the file with a double-click.

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  Dolphin

  Dolphin emulates the Nintendo GameCube and Nintendo Wii on your PC.

  Open source 5.0 397.9K ↓ ★ 15.7K
• W
  Wiimms ISO Tools

  A set of command line tools to manipulate Wii and GameCube ISO images and WBFS containers.

  Free 3.05a 2K ↓

Related guide: Change the default app for a file type in Windows