In OIFitsLoader, loader does not support Tables and columns that are not in the standard. it's throws the rule: OIFITS_TABLE_UNKNOWN or COL_UNKNOWN.
The ideal would be able to load these Tables and columns (even without analyzing them) so the users find their all information.

• Create metadata for the descriptors in the Tables.
• For columns create a column descriptor and add them.
• Create metadata and adding descriptors makes these unknown Tables and columns run automatically.