Blosc2 has different file extensions for different purposes. Here is a list of the currently supported ones:
- .b2frame (but also .b2f or .b2) (Blosc2 frame): this is the main extension for storing Blosc2 contiguous frames.
- .b2nd (Blosc2 n-dimensional): this is just a contiguous frame file with a metalayer for storing n-dimensional information like shape, chunkshape, blockshape and dtype.