/**
 * Exports the current Univer workbook to an .xlsx file.
 * Uses the Facade API (getRange/getValues) to read **computed** cell values,
 * which includes spill-array results from RF formulas. The raw snapshot only
 * stores the anchor cell of a spill array, so reading from it would miss
 * the dynamically expanded values.
 */
export declare function exportWorkbookToXlsx(univerAPI: any, fileName: string): void;
