/**
 * Converts a DOCX document to HTML
 *
 * @param {string|File|Blob|ArrayBuffer|Buffer|Uint8Array} input - DOCX input to convert
 * @param {DocxOptions} [options] - Conversion options
 * @returns {Promise<string>} The converted HTML
 * @throws {Error} If conversion fails
 * @category Extract
 * @example
 * const html = await convertDOCXToHTML('https://example.com/doc.docx');
 * const html = await convertDOCXToHTML(fileInput.files[0]);
 */
export declare function convertDOCXToHTML(input: any, options?: {}): Promise<string>;
/**
 * Detects if a binary buffer is a DOCX file by checking the file signature
 * DOCX files are ZIP archives with specific internal structure
 *
 * @param {ArrayBuffer|Buffer|Uint8Array} buffer - Binary buffer to check
 * @returns {boolean} True if buffer appears to be a DOCX file
 * @category Extract
 */
export declare function isBufferDOCX(buffer: any): boolean;