# Excel Viewer

Open an .xlsx in an Excel viewer that runs in your browser: every sheet, every cell, with search. Nothing is uploaded and no Microsoft account is needed.

Canonical page: https://filetity.com/excel-viewer

## Capabilities

- Free: Yes, with no watermark and no page limit.
- Account required: No. There is no account system.
- Processed on device: Yes. The file is read by your browser and never uploaded. There is no server to send it to.
- Formats: XLSX and XLSM in. A sheet can be saved out as CSV. Older .xls files are a different format and are refused by name rather than as a broken zip.
- Limits: The whole workbook is read. The first 2,000 rows and 200 columns of a sheet are drawn, because laying out more than that freezes a browser tab, and the CSV holds everything.
- Mobile: Yes, on any modern mobile browser. Large files are limited by the memory the phone gives the browser.
- Offline: Yes, once the page has loaded. The tool keeps working with no network connection.

## Questions

### Can I open an old .xls file here?

No, and it says so rather than complaining that the file is corrupt. A .xls is a compound binary document from before 2007 and shares nothing with .xlsx but three letters of its name. Open it in Excel, LibreOffice or Google Sheets once and save it as .xlsx, and this page reads it.

### Why is my date showing as 2023-03-15 when I typed 15/03?

Because that is what the file contains. Excel stores a date as a count of days and remembers separately how you wanted it displayed. This reader converts the number to a real date and shows it in the one order that cannot be misread, which matters when the file came from somewhere that writes month first.

### My formulas are gone. Where did they go?

You are seeing the answers, which is what a viewer should show. Every formula cell in the file also stores the result Excel last calculated, and that is the number on screen. If a cell is blank where a total should be, the file was written by something that never calculated it, which Excel itself fixes on open and a reader cannot.

### Can this edit the spreadsheet?

No. It reads, searches and hands back a CSV of a sheet. Nothing is written over the file you opened, and closing the tab leaves no copy anywhere. To change the data, take the CSV, edit it, and use the CSV to Excel tool to write a new workbook.

## Related tools

- [Excel to JSON](https://filetity.com/excel-to-json): Turn an Excel sheet into JSON records, one per row.
- [CSV Viewer](https://filetity.com/csv-viewer): Open a CSV file as a readable table, without a spreadsheet app.