.MBB File Extension
File Type 2ManaBook Book File
.MBB File Association 2
File created by ManaBook, a Microsoft Word add-in that allows users to combine multiple Word documents into a single "book"; contains a collection of indexed Word documents; used for organizing and filing large numbers of documents through a single interface.
NOTE: MBB files are subject to the same limitations as Microsoft Word files, such as maximum allowable file size and maximum numbers of book directories. Users should avoid creating excessively large books.