.brlyt

A Binary Revolution Layout (.brlyt) file is a file containing layouts in-game. They control where textures are displayed, text is placed, and other placement/design features. They are found in the  folder of a ARC file. They use textures from the ARC file, and use BRLAN animations from the  folder of the archive.

Opening a BRLYT
You can open a BRLYT file with a tool called Wii Layout Editor. However, the tool is feature-lacking, known to be broken, and no longer updated. You can edit the BRLYT files by converting them to readable XMLYT files using a converter tool called Benzin, which is recommended.