Excel.js 
Native node.js Excel file parser. Only supports *.xlsx files for now.
Install
npm install excelUse
import parseXlsx from 'excel';
parseXlsx('Spreadsheet.xlsx').then((data) => {
// data is an array of arrays
});If you have multiple sheets in your spreadsheet,
parseXlsx('Spreadsheet.xlsx', '2').then((data) => {
// data is an array of arrays
});Test
Run npm test
MIT License.
Thanks to all other contributors.