Excel & CSV Viewer
Opens .xlsx, .xls, or .csv files and displays every sheet as a browsable table. Nothing is uploaded.
By The Paper Room Editorial Team — Spreadsheet Tools
Frequently asked questions
Can I edit the spreadsheet in the viewer?▼
The viewer is read-only — it displays your spreadsheet data in a clean table without allowing edits. This is intentional: it ensures you can safely inspect a file without accidentally modifying it.
Which file formats are supported?▼
XLSX (Excel 2007+), XLS (legacy Excel), and CSV files. The tool uses the SheetJS library to parse all common spreadsheet formats directly in your browser.
Is my spreadsheet data uploaded?▼
No. The file is parsed entirely in your browser using JavaScript. Your data never leaves your device — there is no server-side processing.