node-xlsx
Features
Straightforward excel file parser and builder.
- Relies on SheetJS xlsx module to parse/build excel sheets.
- Built with TypeScript for static type checking with exported types along the library.
Install
npm install node-xlsx --saveQuickstart
Parse an xlsx file
import xlsx from 'node-xlsx';
// Or var xlsx = require('node-xlsx').default;
// Parse a buffer
const workSheetsFromBuffer = xlsx.parse(fs.readFileSync(`${__dirname}/myFile.xlsx`));
// Parse a file
const workSheetsFromFile = xlsx.parse(`${__dirname}/myFile.xlsx`);Build an xlsx file
import xlsx from 'node-xlsx';
// Or var xlsx = require('node-xlsx').default;
const data = [
[1, 2, 3],
[true, false, null, 'sheetjs'],
['foo', 'bar', new Date('2014-02-19T14:30Z'), '0.3'],
['baz', null, 'qux'],
];
var buffer = xlsx.build([{name: 'mySheetName', data: data}]); // Returns a bufferCustom column width
import xlsx from 'node-xlsx';
// Or var xlsx = require('node-xlsx').default;
const data = [
[1, 2, 3],
[true, false, null, 'sheetjs'],
['foo', 'bar', new Date('2014-02-19T14:30Z'), '0.3'],
['baz', null, 'qux'],
];
const sheetOptions = {'!cols': [{wch: 6}, {wch: 7}, {wch: 10}, {wch: 20}]};
var buffer = xlsx.build([{name: 'mySheetName', data: data}], {sheetOptions}); // Returns a bufferSpanning multiple rows A1:A4 in every sheets
import xlsx from 'node-xlsx';
// Or var xlsx = require('node-xlsx').default;
const data = [
[1, 2, 3],
[true, false, null, 'sheetjs'],
['foo', 'bar', new Date('2014-02-19T14:30Z'), '0.3'],
['baz', null, 'qux'],
];
const range = {s: {c: 0, r: 0}, e: {c: 0, r: 3}}; // A1:A4
const sheetOptions = {'!merges': [range]};
var buffer = xlsx.build([{name: 'mySheetName', data: data}], {sheetOptions}); // Returns a bufferSpanning multiple rows A1:A4 in second sheet
import xlsx from 'node-xlsx';
// Or var xlsx = require('node-xlsx').default;
const dataSheet1 = [
[1, 2, 3],
[true, false, null, 'sheetjs'],
['foo', 'bar', new Date('2014-02-19T14:30Z'), '0.3'],
['baz', null, 'qux'],
];
const dataSheet2 = [
[4, 5, 6],
[7, 8, 9, 10],
[11, 12, 13, 14],
['baz', null, 'qux'],
];
const range = {s: {c: 0, r: 0}, e: {c: 0, r: 3}}; // A1:A4
const sheetOptions = {'!merges': [range]};
var buffer = xlsx.build([
{name: 'myFirstSheet', data: dataSheet1},
{name: 'mySecondSheet', data: dataSheet2, options: sheetOptions},
]); // Returns a bufferBeware that if you try to merge several times the same cell, your xlsx file will be seen as corrupted.
- Using Primitive Object Notation Data values can also be specified in a non-abstracted representation.
Examples:
const rowAverage = [[{t: 'n', z: 10, f: '=AVERAGE(2:2)'}], [1, 2, 3]];
var buffer = xlsx.build([{name: 'Average Formula', data: rowAverage}]);Refer to xlsx documentation for valid structure and values:
Troubleshooting
This library requires at least node.js v10. For legacy versions, you can use this workaround before using the lib.
npm i --save object-assignObject.prototype.assign = require('object-assign');Contributing
Please submit all pull requests the against master branch. If your unit test contains javascript patches or features, you should include relevant unit tests. Thanks!
Available scripts
| Script | Description |
|---|---|
| start | Alias of test:watch |
| test | Run mocha unit tests |
| test:watch | Run and watch mocha unit tests |
| lint | Run eslint static tests |
| compile | Compile the library |
| compile:watch | Compile and watch the library |
Authors
Olivier Louvignes
Copyright and license
Copyright (C) 2012-2014 Olivier Louvignes
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Except where noted, this license applies to any and all software programs and associated documentation files created by the Original Author and distributed with the Software:
Inspired by SheetJS gist examples, Copyright (c) SheetJS.