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stephen-hardy

xlsx.js

JavaScript2013–2021

stephen-hardy / xlsx.js

xlsx.js

XLSX.js is a JavaScript library for converting the data in base64 XLSX files into JavaScript objects - and back! Please note that this library is licensed under the Microsoft Office Extensible File License - a license NOT approved by the OSI. While this license is based off of the MS-PL, which is OSI-approved, there are significant differences.

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6Distinct people

7Mentions

0Explicit recommenders

576GitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

XLSX.js is a JavaScript library for converting the data in base64 XLSX files into JavaScript objects - and back! Please note that this library is licensed under the Microsoft Office Extensible File License - a license NOT approved by the OSI. While this license is based off of the MS-PL, which is OSI-approved, there are significant differences.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 8:03:49 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year7 dated mentions

Observed mentions: 2013-04-20 17:31:01 UTC to 2021-08-23 06:10:20 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges

UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2013	2013-01-01 00:00:00 UTC	2014-01-01 00:00:00 UTC	2	0	2
2014	2014-01-01 00:00:00 UTC	2015-01-01 00:00:00 UTC	2	0	2
2015	2015-01-01 00:00:00 UTC	2016-01-01 00:00:00 UTC	1	0	1
2016	2016-01-01 00:00:00 UTC	2017-01-01 00:00:00 UTC	0	0	0
2017	2017-01-01 00:00:00 UTC	2018-01-01 00:00:00 UTC	0	0	0
2018	2018-01-01 00:00:00 UTC	2019-01-01 00:00:00 UTC	0	0	0
2019	2019-01-01 00:00:00 UTC	2020-01-01 00:00:00 UTC	0	0	0
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	1	0	1
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	1	0	1

What Hacker News says

1 sources

laurent92·Aug 23, 2021

There was a funny Microsoft license for Xlsx.js (a lib that read Excel files in browser): It was allowed to distribute freely… as long as it runs on Windows: > (F) Platform Limitation- The licenses granted in sections 2(A) & 2(B) extend only to the software or derivative works that (1) are run on a Microsoft Windows operating system product, and (2) are not Excluded Products. So you could not deliver it on Safari, but also not on Chrome if it ran on Mac. Aaaand that is why the JSXLSX implementation was developed, exactly the same as xlsx.js but without the restriction. https://github.com/stephen-hardy/xlsx.js/issues/8

In Project includes a dependancy that has a license that forbids its use