In short
Upload XLSX or CSV to Annopane. The sheet is displayed in the browser, recipients tap a cell and comment – the comment carries sheet name and cell address (e.g. “Budget!C14”).
The display recalculates nothing: values and formats are shown as Excel last saved them. That's intentional – nobody changes a formula by accident.
How it works
- 1
Upload the file
XLSX, XLSM, XLS or CSV/TSV. Multiple sheets are shown as tabs.
- 2
Share the link
Role “Comment”, optional password. Recipients need neither Excel nor an app.
- 3
Comment on cells
Comment mode on, tap a cell, write. The list shows “Sheet!Cell” – unambiguous for you and for Claude.
What works
- Cell-precise comments with sheet name and address
- Number formats, merged cells and frozen rows are respected
- CSV/TSV with automatic delimiter detection
- Large sheets are processed in the background (web worker)
- Export comments as a list or prompt
What doesn't (yet)
- No recalculation, no editing – display only, with comments
- Charts, pivot tables and macros are not rendered
Typical uses
- · Budget or forecast for alignment with the team
- · KPI table for monthly reporting
- · Have a data delivery checked (“row 230 is wrong”)
Frequently asked questions
Can the recipient change values?
No. The sheet is read-only; changes are suggested as comments.
Are formulas shown?
The values last calculated in Excel are shown. Formulas themselves are not visible.
How big can the file be?
100 MB with an account. Very wide sheets with tens of thousands of rows load noticeably longer on a phone.
What about charts?
Excel charts are not rendered. Tip: have Claude generate the dashboard as HTML – that stays interactive.
Read on
Related pages
Try it with a file you already have.
Free, no sign-up. Upload, share the link, collect feedback.
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