Online Excel Viewer & Editor
Open Excel workbooks directly in your browser with SheetJS. Switch between worksheets, edit cells inline, and explore your data without installing desktop software.
Drag and drop your Excel file here
Supports .xlsx and .xls files up to 50MB
Quick start
- 1
Upload an Excel file
Drag and drop or browse for a .xlsx or .xls workbook.
- 2
Review sheet previews
Switch between worksheets and inspect rows and columns instantly.
- 3
Edit cells inline
Update cell values directly in the spreadsheet-style grid.
- 4
Close or load another workbook
Reset and test another file whenever needed.
Data stays on your device
Workbook parsing and preview rendering happen locally in your browser.
Quickly inspect spreadsheet data without opening desktop apps. This tool provides fast worksheet previews and inline editing for common analysis and QA workflows.
50 MB
Max file size
2,000
Max preview rows
200
Max preview columns
Multi-Sheet Workbook Support
Browse every worksheet in a workbook with smooth tab switching.
Inline Grid Editing
Update values directly inside a familiar spreadsheet-like interface.
Large File Safeguards
Automatic row and column caps keep previews responsive on big datasets.
Sample Workbook Mode
Load demo data instantly to test the viewer before uploading your own files.
What Excel formats are supported?
The viewer supports .xlsx and .xls files. Workbooks are parsed with SheetJS in your browser.
Is there a file size limit?
Yes. The current upload limit is 50MB to keep parsing responsive in-browser.
Why are some rows or columns truncated?
To maintain performance, previews are capped at 2,000 rows and 200 columns per sheet.
Is my spreadsheet uploaded to a server?
No. Workbook parsing and table rendering happen locally in your browser.