import { SafeXmlNode } from '../../parser/XmlParser';
export declare function extractStringValues(refNode: SafeXmlNode): string[];
export declare function extractFormatCode(refNode: SafeXmlNode): string | undefined;
export declare function formatValue(value: number, formatCode: string | undefined): string;
export declare function extractNumericValues(refNode: SafeXmlNode): number[];
export declare function excelSerialToDateString(serial: number): string;
