Over the years the OpenType font specification has been updated with new tables and numerous tables have become obsolete. FontCreator supports all common font tables, but some tables are not supported. If you open a font that contains unsupported tables, you will see them here. On export those tables will be put back into the font without change. Sometimes this is useful, but it is also possible that change to the font cause one or more unsupported tables to become outdated.

Select a table to see the binary data in hexadecimal format.
EBDT and EBLC can be considered legacy tables. font designers might decide to keep them for compatibility reasons.
If you want to delete an unsupported table, select the table on the Unsupported Tables page and press the Delete button.
Note: if your font contains unsupported tables, keep in mind that adding, deleting, or sorting glyphs might break such unsupported tables.