Spreadsheet Viewer
Explore large spreadsheet files in a responsive read-only grid with workbook search, formulas, selections and temporary viewing controls.
Open a spreadsheet
View XLSX, XLS, XLSM, XLSB, CSV, TSV, or ODS files locally and read-only.
Your spreadsheet is parsed locally and remains read-only. Files, formulas, macros, and links are never executed or uploaded.
How to use Spreadsheet Viewer
- 1
Choose or drop one XLSX, XLS, XLSM, XLSB, ODS, CSV or TSV file; delimited text opens with automatic encoding and separator detection.
- 2
Move through worksheet tabs, use Go to Cell or search the active sheet or entire workbook, and adjust the grid zoom as needed.
- 3
Select a cell to inspect its displayed value and formula, or select a range to view numeric statistics and copy it as TSV.
- 4
Use Show formulas, hide-empty controls and temporary sorting or filtering when the current worksheet structure supports them.
- 5
For a CSV or TSV parsed incorrectly, open CSV/TSV Settings and reparse the same file; use Open another file or reset when finished.
Frequently asked questions
About Spreadsheet Viewer
Spreadsheet Viewer is designed for inspection rather than editing. It opens modern and legacy Excel workbooks, OpenDocument sheets and delimited text in a consistent grid, making it useful when you need to check data without launching a desktop spreadsheet application or risking accidental changes.
A virtualized canvas keeps navigation responsive by drawing the visible region instead of thousands of off-screen cells. Worksheet tabs, whole-workbook search, formula display, Go to Cell, range copying and quick numeric statistics help answer practical questions about the data. CSV and TSV detection is automatic, with a discreet reparse control when the guessed encoding or delimiter is wrong.
The viewer favors faithful cell information over a promise of pixel-perfect Excel rendering. It shows supported merges, hyperlinks, sizes and basic styles but does not reproduce charts or execute formulas, macros and external connections. Parsing and interaction remain inside the browser, and every view operation leaves the selected file unchanged.