Free XLSX Viewer & Editor Online

Open XLSX spreadsheets for free in your browser on Windows, Mac, Linux or mobile. View multiple worksheets and edit cells inline. No uploads, no signup.

Free No uploads No signup Multiple worksheets

Drop your XLSX file here or choose an Excel workbook from your device

XLSX, XLSM, XLTX, XLTM

Spreadsheet Viewer

100% Download XLSX

Editing C4 Inline cell updates

XLSX file opener

Open and inspect Excel spreadsheets in your browser

Use Open A Zip as an XLSX viewer, XLSX opener and lightweight spreadsheet editor for quick workbook review.

View multiple worksheetsOpen workbooks with multiple sheet tabs and inspect spreadsheet data in a familiar grid.

Edit cells inlineUpdate text, numbers, dates and formulas directly in the browser-based spreadsheet editor.

Preserve workbook structureWork with merged cells, row and column sizing, hidden rows, hidden columns and sheet tabs.

Modern browser supportOpen XLSX spreadsheets on Windows, Mac, Linux, ChromeOS, iOS, Android or any modern browser.

Download updated workbooksSave your changes by downloading an updated XLSX workbook when you are done.

Private local workflowYour spreadsheet is processed locally in your browser. No uploads or account required.

Supported spreadsheet files

XLSX, XLSM, XLTX and XLTM

Open modern Excel workbook and template formats directly in the browser. Macro execution is not supported.

How it works

Review a workbook in three steps

1Choose a workbook

Drop an XLSX, XLSM, XLTX or XLTM file into the page.

2Review sheets and edit cells

Switch between worksheets, inspect data and update cells inline.

3Download the updated file

Export the edited workbook back to your device when you are finished.

Private browser-based viewer

Your spreadsheet stays on your device

No uploadsYour workbook is opened locally in your browser. File contents are not uploaded to our servers.

No account requiredNo login, email or signup flow is required to open an XLSX spreadsheet.

Local spreadsheet editingInspect workbook data and make quick cell edits without a server-side conversion step.

FAQ

XLSX viewer questions

Can I open XLSX files online for free?

Yes. You can open XLSX spreadsheets in your browser for free without installing Microsoft Excel.

Can I edit spreadsheet cells?

Yes. You can make quick inline edits to text, numbers, dates and formulas, then download the updated workbook.

Does it support multiple worksheets?

Yes. Workbooks with multiple worksheet tabs can be opened and reviewed in the browser.

Are my XLSX files uploaded?

No. Files are processed locally in your browser. Spreadsheet contents are not uploaded.

Does this page support XLS or CSV files?

This XLSX editor page is focused on XLSX, XLSM, XLTX and XLTM files. CSV has a separate viewer.