I understand the question to mean “How do I make all entries have the same output format, where the output contains all the fields I want and ignores any others?”. See: Universal Import Filter
- Option1: Apply the same output format to all entry types. Output styles typically contain different fields for different entry types, so I think this option would require the creation of a style that includes a default output format and no entry-type-specific formats.
- Option 2: Convert all entries to the same entry type to force the same output style apply to all entries.