Blog Post

Microsoft 365 Insider Blog
2 MIN READ

Agent mode in Excel now works with your local files

Prash_MSFT's avatar
Prash_MSFT
Icon for Microsoft rankMicrosoft
Feb 27, 2026
Hello Insiders! I am Prash Shirolkar, a Product Manager on the Excel team. I am thrilled to announce that Agent mode in Microsoft 365 Copilot Chat now enables you to query modern (.xlsx, .xlsb, .xlsm...
Demo of Agent mode in local Excel file.
Updated Mar 04, 2026
Version 3.0
copilot
excel
KubaBorkowski's avatar
KubaBorkowski
Brass Contributor
Mar 06, 2026

This was asked in different post, yet without answer - how can this be blocked on admin side?
This seems like a significant risk for regulated industries and counting on users to NOT use it will not cut it with regulators...