Spreadsheet Tools

Excel Viewer

Choose a workbook, inspect a worksheet in browser memory, and use the adjacent CSV/Excel tools when you need to clean, convert, or reshape the data.

Spreadsheet file

Worksheet

Search preview

—Rows

—Columns

—Worksheets

—File size

Choose a spreadsheetOnly the first 300 matching rows are rendered to keep the preview responsive; the workbook itself stays local.

CSV and spreadsheet boundaries

CSV has no universal schema or type system. Delimiter detection and type summaries are practical heuristics, while repairs create a new copy instead of silently altering the source. Excel conversion focuses on cell values and simple worksheets rather than promising perfect preservation of formulas, macros, charts, external links, formatting or every workbook feature.