Will my formulas show their results?

Yes — they're calculated with the same rules as Excel, including lookups, dates and text functions.

Can I edit and save it?

Yes — it's a full editor. Download it as .xlsx, PDF, CSV and more.

How much does it cost?

You can open your file, convert it and check or change everything in the studio before you pay anything. Downloading the finished file is part of every MojoPDF plan — start with the 7-day trial for $1 and cancel any time.

Is it safe to use XLSX Viewer here?

Yes. Your file travels over an encrypted connection and stays private to you — nobody else can open it. Projects you save are kept in your account until you delete them, and download links we email you expire after 7 days.

Excel Tools

XLSX Viewer

Open any .xlsx workbook online — every sheet, formula, chart, filter and frozen pane, the way Excel shows it. No Excel needed.

Drop an .xlsx file

or browse from your device — .xlsx, .xls, .ods, .numbers

Private & secure· Formulas calculate· Edit as you view

An XLSX viewer that keeps the formulas working

Phone previews and quick viewers show an .xlsx as a flat grid: formulas lost, charts missing, frozen headers gone. This XLSX viewer opens the workbook in Mega Excel Studio, a full spreadsheet engine with 350+ Excel functions, so every formula calculates, every chart draws and filters, number formats, merged cells, conditional colours and frozen panes look as they should. Switch sheets, sort and filter, search, or change a value and watch the totals update. Save it as .xlsx again, or as PDF, CSV and more.

Formulas that calculate

350+ Excel functions.

Charts and formats

Colours, borders, frozen panes.

Sort, filter, search

Find any value fast.

Frequently asked questions

Drop it above — it opens in Mega Excel Studio in your browser, on any computer, Chromebook or phone.