How to delete every cell comment and note from an excel workbook
- Step 1Drop your Excel file — Upload the .xlsx with internal comments to be removed before external sharing.
- Step 2Purge comments — ExcelJS iterates every cell. Any cell.note property is set to undefined — all annotations are removed.
- Step 3Download the comment-free workbook — The output has no comments. Open in Excel and the Review tab's Comments pane will be empty.
Frequently asked questions
Does it remove threaded comments (the newer type)?+
ExcelJS's cell.note covers the legacy Notes/Comments. Threaded comments (introduced in Excel 365) may require the raw XML approach — support is being added.
Will it affect data validation messages?+
No. Data validation input messages and error alerts are stored separately and are unaffected.
Can I selectively remove comments from one sheet?+
All-sheet purge is the current behaviour. Per-sheet selection is on the Pro roadmap.
Privacy first
Every JAD Excel tool runs entirely in your browser using SheetJS and ExcelJS. Your spreadsheets, formulas, and data never leave your device — verified by zero outbound network requests during processing.