XLSX Editor

Name: XLSX Editor
Author: Shipit Software

By: Shipit Software Add-on

Open and edit Excel workbooks locally. Download your edited workbook without uploading file data.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-11-08

Version:

0.1.0

Last updated: 2026-10-18

Features & Capabilities

Open XLSX workbooks in a full browser tab. Inspect cells and formulas, change supported values, and move between sheets using the ribbon, formula bar and worksheet tabs. No account required.

All workbook processing runs locally using bundled code and WebAssembly. No webpage-reading permissions, content scripts, remote code or automatic analytics. Workbook contents stay in tab memory and are not uploaded or saved in browser storage. Closing or reloading clears working state.

Download edits as a separate XLSX file. The original is not overwritten. Formula calculation and advanced Excel features have limits; unsupported operations show an explanation. Keep a backup and check exports before replacing originals.

More tools: https://workbook.tools/editor

Independently developed by Shipit Software Limited. Not affiliated with Microsoft. Microsoft Excel is a trademark of Microsoft Corporation.

User Growth & Download Statistics

Add-on

By:

Shipit Software

Daily users:

Version:

0.1.0 Last updated: 2026-10-18

Version code:

6582409

Creation date:

2026-10-15

Firefox add-on GUID:

{b3b48ced-4518-454e-b884-992940df4cdc}

Firefox add-on numeric ID:

3097770

Weekly download count:

Firefox on Android:

Risk:

Size:

4.02MB

Website:

https://workbook.tools/support DR 18

Privacy policy:

https://addons.mozilla.org/firefox/addon/xlsx-editor/privacy/

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-11-08

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:: Shipit Software
Firefox Add-ons Store: https://addons.mozilla.org/firefox/addon/xlsx-editor/
Website:: https://workbook.tools/support

Is XLSX Editor Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

XLSX Editor does not require any sensitive permissions.

Risk impact analysis details

Low This permission has no access or impact on the user's system or data, thus carrying no risk.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

XLSX Editor is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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