import { DocumentReader } from '../../core/ir/adapters.js';
import { SheetDoc } from '../../core/ir/sheet.js';
/**
 * The legacy `.xls` {@link DocumentReader} (XLS-3): sniffs a BIFF8 OLE2/CFB
 * workbook and reads it into the same {@link SheetDoc} the OOXML xlsx reader
 * produces, so the whole render pipeline works on a 1997–2003 `.xls`. Reports a
 * single degraded {@link Loss} for the unread Excel-tables / autofilter feature.
 */
export declare const xlsReader: DocumentReader<SheetDoc>;