import {ParsingOptions} from 'xlsx'; interface Options extends ParsingOptions{ entry?: string; } interface NativeData { sheetName: string; data: string[][]; } interface Lang { [key: string]: any; } declare module 'xlsx-json-js' { class XLSX2JSON { parse(data: any, options?: Options): NativeData[]; parse2json(data: any, options?: Options): Lang[]; parse2jsonCover: string[]; } export default XLSX2JSON }