The website is no longer being updated, and is for archival purposes only.
Corona SDK is now Solar2D
: This confirms it is the first segment of a multi-part compressed archive, meaning the full data requires all subsequent parts (part2, part3, etc.) to be extracted successfully.
: Likely indicates a version or build ID. "BREE" may refer to Building Research Establishment Environmental (often related to BREEAM standards) or a specific proprietary software version. sc25485-BREEv121075.part1.rar
did you obtain this file (e.g., a specific engineering portal, a software update site, or a project repository)? : This confirms it is the first segment