XLS to XLSX using NodeJS

The NodeJS library for converting one Excel document to another Excel document format.

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XLS to XLSX features

The NodeJS package for converting XLS file to XLSX file.

ConvertAPI Node.js library install

ConvertAPI provides a Node.js library that allows you to perform a XLS to XLSX conversion with just a few lines of code. First, install our convertapi library from npm:

NPM package >
npm install convertapi --save

Authenticate your Node.js library

You can obtain your secret key by signing up for a free account. Once you sign up, you'll receive 250 free conversions instantly! Grab your authentication secret from the account dashboard, and authenticate the ConvertAPI Node.js library like this:

// get your secret key here: https://www.convertapi.com/a/auth
var convertapi = require('convertapi')('secret_or_token');
Or using ES modules:
import ConvertAPI from 'convertapi';
const convertapi = new ConvertAPI('secret_or_token');

Convert XLS to XLSX using Node.js in no time!

Once you have your authentication in place, simply copy-paste this xls to xlsx conversion code snippet into your Node.js project:

// Code snippet is using the ConvertAPI JavaScript Client: https://github.com/ConvertAPI/convertapi-js

// Code snippet is using the ConvertAPI Node.js Client: https://github.com/ConvertAPI/convertapi-nodejs

// Code snippet is using the ConvertAPI PHP Client: https://github.com/ConvertAPI/convertapi-php

// Code snippet is using the ConvertAPI Java Client: https://github.com/ConvertAPI/convertapi-java

// Code snippet is using the ConvertAPI C# Client: https://github.com/ConvertAPI/convertapi-dotnet

# Code snippet is using the ConvertAPI Ruby Client: https://github.com/ConvertAPI/convertapi-ruby

# Code snippet is using the ConvertAPI Python Client: https://github.com/ConvertAPI/convertapi-python

// Code snippet is using the ConvertAPI Go Client: https://github.com/ConvertAPI/convertapi-go

REM Code snippet is using the command line utility program: https://github.com/ConvertAPI/convertapi-cli

<!-- For conversions with the multiple file result please refer to this example: https://repl.it/@ConvertAPI/HTML-Form-with-multiple-file-result -->

Try the conversion online - no coding required!

You can try out advanced conversion parameters and test the conversion result online using our interactive demo tool. This tool will produce the same conversion output as if you were using the library from your solution, and it will auto-generate the code snippet for you!

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Conversion parameters

Password String

Sets the password to open protected documents.

Try XLS to XLSX for free!