Excel Viewer and Editor

Open, view, edit and download Excel or CSV files.

Excel Viewer and Editor

Drag & drop files here or click to browse

XLSXCSV
Files are processed in your browser and never uploaded
No spreadsheet file selected
🔒 Client-Side Processing · Files never leave your browser · No server uploads

About Excel Viewer and Editor

View, edit, filter, and inspect Microsoft Excel (.xlsx, .xls) and CSV spreadsheets directly in your browser. Edit cell values, add rows, and export updated files without office software.

How to use Excel Viewer and Editor

1

Add your file

Choose a file or drag it onto the upload box. We check that the file type and size are supported.

2

Pick your options

Change the settings shown next to the file if you need to. The defaults work for most files.

3

Download the result

Click the main button, then download your new file. Check it before you share or submit it.

What it does

  • ✓Open and view multi-sheet Excel workbooks and CSV files interactively
  • ✓Edit cell data, modify values, and add or delete table rows
  • ✓Download updated spreadsheets as standard XLSX or CSV files
  • ✓Runs locally via SheetJS in browser memory with privacy

When to use it

Quick Spreadsheet Edits

Make quick number or text updates on Chromebooks, mobile devices, or shared computers without Office installed.

Spreadsheet Inspection

Review client data files, sales figures, and inventory tables safely before importing.

Data Verification

Inspect column headers and cell types before running automated data pipelines.

Lightweight Data Entry

Enter rows and records directly in browser and download clean XLSX files.

Your file stays on your device

This tool runs entirely in your browser. Your file is processed on your own device and is never uploaded to our servers.

Tips

  • •Switch between sheets using the tab selector if your workbook contains multiple worksheets.
  • •Double-click any table cell to edit its value directly.
  • •Save your edited workbook as XLSX to preserve multi-sheet structures.

Excel Viewer and Editor FAQ