src/index.js

import * as cell from './cell';
import * as col from './col';
import * as file from './file';
import * as lib from './lib';
import * as row from './row';
import * as sheet from './sheet';
import * as style from './style';
import Zip from 'jszip';

export default { ...cell, ...col, ...file, ...lib, ...row, ...sheet, ...style, Zip };