import { Adapter, AdapterManifest, DocumentModel, FileSourceReader, RenderContext, RenderResult, TextLayer } from '../../core/types.js';
export declare const xlsxManifest: AdapterManifest;
export declare class XlsxAdapter implements Adapter {
    readonly manifest: AdapterManifest;
    private sheetHtmls;
    private sheetNames;
    private sheetTexts;
    parse(source: FileSourceReader, signal: AbortSignal): Promise<DocumentModel>;
    renderPage(ctx: RenderContext): Promise<RenderResult>;
    getTextLayer(pageIndex: number, _signal?: AbortSignal): Promise<TextLayer>;
    dispose(): void;
}