Exciting Enhancements in Excel for September 2025
As the cornerstone of Microsoft’s suite of productivity tools, Excel has continuously evolved, celebrating a significant milestone this September—its 40th anniversary. Microsoft remains dedicated to improving this flagship spreadsheet software, regularly rolling out new features to enhance user experience. In September 2025, users were introduced to five notable enhancements across various platforms including Windows, web, and iOS.
Key Updates in Excel for Web
This month, the Excel for web platform welcomed two important updates exclusively for members of the Frontier program. For those unfamiliar, “Frontier”comprises early adopters of AI technologies aimed at fostering rapid growth for both businesses and individuals.
Introducing Agent Mode
The first enhancement is the introduction of Agent Mode within Excel. This innovative feature acts as an AI agent designed to automate routine tasks utilizing native Excel functionalities. Available through Microsoft 365 Copilot—along with Family and Personal plans—Agent Mode is set to be incorporated into the Windows version shortly.
COPILOT() Functionality
The second enhancement involves the rollout of the COPILOT() function, which simplifies data manipulation. This capability was initially made accessible to Windows and Mac Insiders in August, further improving user experience.
AI-Driven Features for Enhanced Efficiency
Excel is also introducing an AI-driven feature that offers automatic formula completion. This enhancement activates as soon as you type the “=”symbol, streamlining your workflow. For more details on this feature and its availability for web users and Windows Insiders, further documentation has been made available.
Improvements for Windows Insiders
Windows Insiders utilizing Excel can now access a Python Initialization Editor. This tool allows users to configure the Python startup process in Excel, which is particularly advantageous for programmers who frequently use boilerplate code, such as importing functions in their scripts.
Updates for iOS Users
On the iOS front, Excel Insiders will benefit from Copilot-powered file previews. This feature provides intuitive previews of files within the Microsoft 365 Copilot app, making document review easier and faster.
Share Your Feedback
Microsoft values user feedback regarding both existing features and potential new capabilities. Users are encouraged to share their thoughts directly through the Excel app or visit the dedicated feedback portal here.
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