Excel intelligence, on your terms.
Bring AI to the spreadsheets that already run your business — with the identity, security, and control your organization requires. No data migration, no rebuild.
Book a demo
See Excelfyio against your own workbooks. We'll be in touch within one business day.
Built for sensitive workbooks
Excelfyio is designed so the spreadsheets running your business stay under your control — at every layer.
Data ownership
Your workbooks and generated systems belong to you. Export anytime; nothing is locked in.
Encryption everywhere
Data encrypted in transit and at rest, with scoped access and least-privilege defaults.
Bring your own AI keys
Use your own model provider and keys. Prompts and data are never used to train shared models.
Microsoft identity & SSO
Sign in with Microsoft and AuthFyio. Provision and de-provision through your existing directory.
Audit trails
Every analysis, fix, and generation is logged — who did what, to which workbook, and when.
Local or cloud AI
Run analysis locally with Desktop for sensitive data, or in the cloud for scale — your choice.
Fits how your organization works
Native add-in
Excelfyio Desktop rolled out to Windows Excel, with local processing for the most sensitive workbooks.
- Local AI processing
- Group-policy deployment
- OneDrive integration
Managed cloud
Excelfyio Cloud on Nfyio Cloud — generation, hosting, identity, and storage fully managed for your team.
- Shared workspaces & roles
- Tenant administration
- Live URLs with rollback
Region & controls
Data residency, custom retention, and security reviews for regulated and multi-region organizations.
- Data residency options
- Custom retention policies
- Dedicated support