Native intelligence, inside Excel.
Add an AI intelligence layer directly to Microsoft Excel on Windows. Profile workbooks, stabilize messy data, and watch for drift — with local processing and native XLL performance.
Excel, with an analyst built in
Excelfyio Desktop runs as a native add-in — your workbooks never have to leave the machine to become intelligent.
Workbook intelligence & profiling
Map every table, type every column, and surface the structure and meaning of a workbook in seconds — directly in the task pane.
Data stabilization
Detect anomalies, missing values, and broken formulas — then fix them in place with one click, with a full audit of every change.
OneDrive intelligence & drift detection
Watch synced workbooks for schema drift and unexpected changes, and get notified the moment a source diverges from its baseline.
Local AI · native XLL performance
Built on the Microsoft Excel XLL SDK for native speed, with local AI so sensitive workbooks are analyzed without leaving your control.
Your data never has to leave the machine
Desktop processes workbooks locally and layers on AuthFyio identity and Microsoft sign-in for enterprise SSO. Bring your own model keys — prompts and data stay private by default.