Microsoft Microsoft 365 Apps Monthly Enterprise Channel Update Version Version 2602 (Build 19725.20170)

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Update Summary

Version 2602 (Build 19725.20170) adds local file support for Copilot Chat and Excel Agent Mode in modern Excel workbooks, plus Agent mode in Word. It also includes security updates and fixes for OneNote and Outlook.

Update Details

Security

  • Security updates are included in this release.

Bug Fixes

  • Fixed OneNote crashes when pasting content from a web page containing a <math> (MathML) tag with no attributes.
  • Fixed OneNote startup crashes.
  • Fixed Outlook calendar rendering issues where extended characters could appear as question marks.
  • Updated configuration retrieval for Word, Excel, and PowerPoint so People experiences work properly in Sovereign cloud environments.

New Features

  • Added local file support for Copilot Chat in modern Excel workbooks stored on the device.
  • Added local file support for Excel Agent Mode in modern Excel workbooks stored on the device.
  • Added Agent mode in Word for conversational drafting, rewriting, and content refinement.
Product Information

Vendor: Microsoft

Product: Microsoft 365 Apps

Version: Version 2602 (Build 19725.20170)

Release date: Mar 10, 2026

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