How to use the Excel Viewer
- Open your file – Choose or drop an .xlsx, .xls, .csv or .ods file – it opens right away in your browser.
- Read and zoom – Scroll, zoom, go full screen or print. Nothing is uploaded.
- Download, convert or edit – Use the buttons above the file to save it, convert it to another format or open it in the matching editor.
About Excel Viewer
Open an Excel workbook or CSV file in your browser without Microsoft Excel. Every sheet is shown as a grid with its column widths, colours, bold text, merged cells and calculated formula results, and you can switch between sheets. XLSX and CSV files (including Korean and other non-Latin text) are read on your device and never uploaded; old .xls and .ods files are converted once on our server. Download, print, convert to PDF or open it in our Excel editor.
Frequently asked questions
Is it free?
Yes – free with no sign-up, no ads in the viewer, no watermark and no limit on how many files you open.
Is my file uploaded?
No. The file is opened and shown on your device and never leaves it. Only formats a browser can't read (old .doc/.ppt/.xls, Pages, Keynote, DjVu, XPS, MOBI) are converted once on our server over HTTPS and deleted right away – the page tells you when that happens.
Are formulas and all sheets shown?
Yes – every sheet is shown, and formulas display their results. Charts and pivot tables are not drawn, but they stay in the file you download.
Can I edit the spreadsheet?
Yes. Click Edit to open it in our free Excel editor, which recalculates about 280 Excel functions and saves a real .xlsx.
Do I need to install anything?
No. It works in any modern browser on Windows, Mac, Linux, Chromebook, iPhone and Android. On Android you can also install the free Kitbly app and pick it in “Open with”.
Does it work on my phone?
Yes. It works in any modern browser on iPhone, Android, Windows and Mac.