SNB is a notebook file format used by the S Note app on Samsung devices. It stores notes, sketches, and multimedia content created within the app. SNB files can be opened and edited on Samsung smartphones and tablets, allowing users to create and organize notes and drawings.
OEB is an ebook format used by the Open eBook standard for digital publications. It supports rich text, images, and hyperlinks, and is commonly used for distributing digital books and content. OEB files are now considered obsolete, replaced by the more widely used EPUB format.