File Types and What They Mean

ERFEdit is for Bioware-style archive containers.

Supported Families in Core Logic

Some formats are recognized by the backend logic but may not appear in all current file dialogs.

If a file type is not visible in a dialog, it does not always mean the format is impossible. It can be a UI filter limitation.

The app supports archive version variants used by older and newer content packs in this family.

For normal use, you do not need to manage version internals manually.