Someone sends you a workbook and the machine you are on has no Excel. Doconut.app opens it in a browser tab — XLS, XLSX, CSV, ODS, XLSM, XLSB, XLTX and XLTM, up to 20 MB each — with the charts, the cell styles and the sheet tabs intact.

Impeccable Visualization of Graphs and Pivot Tables 📊
Graphs and pivot tables are essential elements in Excel for effectively communicating data. Doconut.app ensures that these elements are displayed correctly, maintaining their original formatting and colors. Thus, you can analyze your data accurately and without distortions, whether you're reviewing trends, comparing information, or identifying patterns.
What a Formula Cell Shows 🔠
This is the one thing worth being precise about, because it is where a viewer differs from Excel. A formula cell displays the figure it resolved to, not the formula behind it. You can read the number and quote it; you cannot inspect or edit the expression that produced it, because there is no formula bar and nothing here recalculates.
For reading a workbook somebody sent you, the resolved value is almost always what you wanted. For auditing how a number was built, you need Excel.
A Versatile Viewer for All File Types 🔍
Doconut.app is not limited to Excel files. In fact, you can view a wide range of file formats, including PDFs, AutoCAD, HTML, images, Microsoft Word, and PowerPoint. This makes it a versatile and practical tool for managing your documents from anywhere and any device.
What It Does Not Do
Worth stating plainly, since spreadsheets are the format people most expect to change:
- No editing. You cannot alter a cell. Nothing you do here changes the file.
- No collaboration. There is no shared session, no comments between users, no real-time anything. It is one person reading one file.
- No conversion. An XLSX does not come back as a PDF or a CSV. You can print, and printing to PDF through your browser works, but there is no export menu.
What you get instead is speed and privacy: no account, no install, and your workbook deleted once you have read it — which matters, because these files hold payroll and pricing more often than they hold anything else.
The Doconut.app Team