FMBLAREA is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Communication structure BL areas for BL Core" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_FMBLAREA TYPE FMBLAREA.
The FMBLAREA table consists of various fields, each holding specific information or linking keys about Communication structure BL areas for BL Core data available in SAP. These include OFFSET_ACC_REQUIRED (Offset account is required), FMBLSPLIT (Splitting indicator for BL documents), DOC_TYPE (Document Type)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .