COBL_HEADER 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 "Sender/Receiver Header Information from COBL" 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_COBL_HEADER TYPE COBL_HEADER.
The COBL_HEADER table consists of various fields, each holding specific information or linking keys about Sender/Receiver Header Information from COBL data available in SAP. These include GJAHR (Fiscal Year), PERAB (From Period), PERBI (To period), WKGBTR (Total Value in Controlling Area Currency)... 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. .