UPX_YS_HTML_DATA 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 "Data for HTML" 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_UPX_YS_HTML_DATA TYPE UPX_YS_HTML_DATA.
The UPX_YS_HTML_DATA table consists of various fields, each holding specific information or linking keys about Data for HTML data available in SAP. These include COL (Column position within screen area), NAME (Character field length 50), VALUE (Character field length 50)... 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. .