node package manager


Create or open and then edit existing XLSX files

# kexcel

Manipulate .xlsx files - easy.

Build Status Coverage Status

Notes and information


npm install kexcel --save

What KExcel supports

  • Reading .xlsx files from a file or a stream

  • Pure javascript, works on all operating systems.

  • Read sheet data and get values from:

    • Cells
    • Rows
    • Whole sheet
  • Supports creating empty files and sheets

    • Set strings / numbers or formulas to cells
    • Copy contents from other sheets
    • Copy cell styles from other cells

What KExcel does not (yet?)

  • Calculations - you may set formulas, but they are only computed the next time you open the file in an spreadsheet editor (e.g. Excel or LibreOffice Calc)
  • Styles - Setting custom styles
  • Support for other spreadsheet cell types (e.g. date, hours, etc.)

TL;DR Simple Usage Examples

Create a new .xlsx file from scratch

var fs = require('fs');
var kexcel = require('kexcel'); (wb) {
  var sheet = wb.getSheet(0);
  sheet.setCellValue(1, 1, 'Hello world!');
  return wb.pipe(fs.createWriteStream('output.xlsx'));

Modify an existing .xlsx file and send it through a http response (express)

var path = require('path');
var express = require('express');
var app = express();
var kexcel = require('kexcel');
app.get('/', function (req, res) {, 'example.xlsx')).then(function(workbook) {
        var sheet = workbook.getSheet(0);
        sheet.setCellValue(1,1,'Hello World!');
        sheet.setRow(2, ['Hello', 'even', 'more', 'Worlds']);
        sheet.setRow(3, [1, '+', 2, 'equals','=A3+C3']);
        res.setHeader('Content-disposition', 'attachment; filename=example.xlsx');
        res.setHeader('Content-type', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
var server = app.listen(3000, function () {
    var host = server.address().address;
    var port = server.address().port;
    console.log('KExcel app listening at http://%s:%s', host, port);