Free workbook structure check
Open the file.
See the structure.
List sheets, formula cells and direct references before planning a migration. Your selected file stays in your browser. This tool makes no upload and performs no AI request.
It inventories structure. It does not recalculate formulas, infer business policy or replace the paid blueprint.
Up to 10 MB compressed. Standard scope: 10 sheets and 2,000 formula cells. Macros, external data and unsupported features need separate review.
No file selected. Try an invented example or choose your own workbook.
Workbook inventory
| Sheet | State | Populated cells | Formulas |
|---|
Formula register
A1 references are extracted from formula text. Named ranges, dynamic references and table semantics are not expanded. Cached values are historical file contents, not verified calculations. The screen shows up to 200 formulas; the download includes all inspected rows within safety limits.
| Source | Formula | Direct references |
|---|
A structural match is only a first fit check. The paid service adds source-checked interpretation, migration questions and acceptance cases after agreed intake. Send a description first, without the workbook.
Discuss a migration blueprint ↗What happens to my data?
The tool reads the file into this page’s memory. It does not upload or persist the workbook. Clear removes the current file and results. Closing the tab ends processing. Your downloaded inventory remains wherever you save it. Avoid shared devices for confidential material.
What can this check miss?
It cannot discover business rules outside the file or employee judgment. It does not execute macros, follow external links or verify calculations. Unsupported features are flagged. Formula references are an inventory, not a complete dependency graph or correctness test.