or RetroED. These extracted files are compatible with the RSDKv5 decompilation, provided the assets are sourced from a legally purchased copy of the game. For more details on extracting the data, see the YouTube video

In the context of a "Data SDK" or modding tools, this file is the primary target for extraction and re-compilation.

What you want to make (sprite swaps, new levels, or music) I can provide a step-by-step guide for your specific setup.