HyperFormula is an open-source headless spreadsheet for business web apps. It comes with over 400 formulas, CRUD operations, undo-redo, clipboard support, and sorting.

Import flow for Excel (.xlsx) and CSV file with automated column matching and validation.

Export to plain text, css, html, json, csv, xls, xml files from JSON.

A simple yet powerful library to effortlessly export any data into XLSX sheets, with the full power of type-safety and awesome DX

🔍 Preview spreadsheets in your terminal!

save your data to a file and store it

Convert .xlsx file into .json file easily

XRPF Standards Proposal - Improved Concise Transaction Identifier (CTID)

Excel workbook validation engine that detects quality issues, ensures consistency, and makes your spreadsheets bulletproof.

How to add dynamic data from Internet and insert it to Excel (Case: Migrate Ecommerce)

create excel in node

A simple converter to read xlsx and xls files and convert them to JSON.

Simple node script to convert xls(x) files to csv

Modeller for forecasting data by month/quarter/year

Leitor de planilhas sob demanda

The API converts XLS files to XLSX or JSON on the fly.

otherExcelJS is a library for working with excel. including xls reading and writing.