Excel viewer and editor opens .xlsx, .xls, .ods and CSV files in your browser, so you can read and change a spreadsheet on a phone or a computer without Excel. Switch between sheets, edit cells, add formulas and save it again as Excel or CSV.

When to use Excel viewer and editor

• Open an Excel attachment on a phone or a shared computer
• Fix a few cells in a CSV before you upload it to a portal
• Start a quick new sheet without installing anything

How to use Excel viewer and editor

1. Add an Excel, ODS or CSV file, or start a blank sheet.
2. Click any cell to change it. Start with = to type a formula.
3. Click Download to save it as .xlsx or CSV.

Tips

• Press Enter to move down to the next row.
• Big sheets show the first 500 rows on screen, but the download keeps every row.

Questions about Excel viewer and editor

Are my files uploaded?

No. The file is opened and changed inside your browser, on your phone or computer. Nothing is sent to our servers.

Do formulas work?

Formulas are kept and saved into the file. Excel, Google Sheets or LibreOffice calculates them when you open the downloaded file.

Is the formatting kept?

Values, formulas, dates and sheet names are kept. Colours, borders, merged-cell styles and charts may not carry over, because the file is rebuilt in your browser.

Is it safe?

Yes. Excel viewer and editor works inside your browser. Your files are not uploaded anywhere, so nobody else can see them, and there are no waiting queues.

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