F50D 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 "Screen fields for screen 0100 in report RFVDTAB1" 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_F50D TYPE F50D.
The F50D table consists of various fields, each holding specific information or linking keys about Screen fields for screen 0100 in report RFVDTAB1 data available in SAP. These include XBEWART (Name of flow type), ZSBEWART (Flow Type), OPTION1 (Possible answer YES), OPTION2 (Possible answer NO)... 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. .