Access issue (don't quite know how to label it)

[cyborgjustice]

This is my first time using dolphin. Everything seems fine except for a system problem. I'm trying to access a wii file but it is labeled as a gamecube file. I need to know how to switch this so I can access the wii file. A general explanation of how to do this would be very helpful. I can send an image of the issue if I did not explain it well.