Read spreadsheets like code. Choose a workbook and see its structure first.
A long-running business workbook is undocumented legacy software.
Excel Intelligence & Controls works inside your browser: it identifies table structure, maps relative formula families and cross-sheet dependencies,
preserves Excel error evidence, and queues formula breaks or minority patterns that need human review.
Browser-only processing · files stay on this deviceSupports .xlsx / .xls / .csv / .tsvWorks offlineDownloadable MD / HTML / JSON reports
① Use a de-identified workbook
Remove names, identity numbers, phone numbers, and other sensitive data first. The file is not uploaded, but de-identification is still good practice.
② Your file stays in your browser
Analysis runs entirely in this page's memory. No server receives your data, and the analyzer continues to work when the network is disconnected.
③ Results stay on this page
Refreshing clears them. Download a report if you want to keep it; the report is saved only on your own device.
The browser review is now more than Step 0
1 Read structure2 Group formula families3 Map dependency evidence4 Queue review signals5 Human review ★Local Agent · BuildLocal Agent · StandardizeLocal Agent · Query / What-If
The browser pass now shows how formula patterns repeat, where dependencies point, and which structural signals deserve review.
It still does not prove business meaning or recalculate the complete workbook. Governed ontology decisions, standardization, trusted queries, reconciliation, and reversible What-If remain capabilities of the separately installed local Agent and require human review.
