Notes about the BR3 file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The BR3 file type is primarily associated with 'Bryce' by DAZ Productions. 3D Landscaping & Rendering. Bryce was made by MetaCreations, changed to Viewpoint, and the product was then taken over by Corel. In 2004 the software was sold again, to DAZ 3D.