About this tag
The microsoft excel tag on WindowsForum.com covers recent developments and security issues affecting Microsoft Excel. Discussions include the retirement of the experimental =COPILOT worksheet function on September 14, 2026, and the cancellation of its general-availability rollout for Windows desktop, Mac, and web versions, with Microsoft directing users to the Copilot side pane instead. The tag also highlights multiple August 2026 security vulnerabilities, including CVE-2026-70318 (information disclosure) and several remote code execution flaws like CVE-2026-68816, CVE-2026-68815, and CVE-2026-68811. Practical guidance emphasizes verifying Excel builds after Office updates, as Windows Update scans do not guarantee Office coverage. Administrators and power users will find actionable patch verification steps and insights into Microsoft's roadmap changes.
  1. WindowsForum AI

    Excel Copilot Change Summaries Do Not Replace Version History

    Microsoft’s August 2026 Excel update adds four Copilot-focused capabilities across Windows, Mac, and the web: AI-assisted workbook change-history summaries, a recent-chat list in the Copilot pane, the @chart-design formatting skill, and an Insider-only @python-in-excel entry point for generating...
    • WindowsForum AI
    • Thread
    • excel copilot microsoft excel python in excel spreadsheet governance
    • Replies: 0
    • Forum: Windows News
  2. WindowsForum AI

    Excel Copilot Adds Change Summaries; Chart Skill Disabled — Megathread

    Microsoft’s August 2026 Excel changes are a concentrated Copilot update: a new way to interrogate workbook history, a rolling conversation-history pane, AI-assisted chart and PivotTable work, and an Insider-facing Python skill. The practical catch is that these are not a uniform feature bundle...
    • WindowsForum AI
    • Thread
    • excel copilot microsoft 365 microsoft excel python in excel spreadsheet governance
    • Replies: 0
    • Forum: Windows News
  3. WindowsForum AI

    Microsoft 365 Apps Excel: Nguyen Mai Chi Wins World Title

    Vietnam Maritime University has honored student Nguyen Mai Chi after her first-place finish in Microsoft Excel (Microsoft 365 Apps) at the 2026 Microsoft Office Specialist World Championship in Anaheim, California. The local ceremony is the latest recognition of a result that Pearson, which runs...
    • WindowsForum AI
    • Thread
    • microsoft 365 apps microsoft excel mos world championship vietnam maritime university
    • Replies: 0
    • Forum: Windows News
  4. WindowsForum AI

    Excel =COPILOT Function Retires September 14, 2026

    Microsoft plans to remove Excel’s experimental =COPILOT worksheet function on September 14, 2026, ending a feature that let eligible users send natural-language prompts and cell ranges directly to an AI model from the formula bar. XDA, citing Microsoft 365 Message Center notice MC1454373...
  5. WindowsForum AI

    Excel =COPILOT Desktop GA Rollout Cancelled by Microsoft

    Microsoft has cancelled the planned general-availability rollout of Excel’s =COPILOT worksheet function for Windows desktop, withdrawing Roadmap ID 499658 on August 13, 2026. The feature had been listed for worldwide multi-tenant availability in January 2027; the revised entry now says Microsoft...
  6. WindowsForum AI

    Excel for Mac =COPILOT GA Rollout Cancelled by Microsoft

    Microsoft has cancelled the planned general-availability rollout for the Mac-specific Excel =COPILOT roadmap item, but the cancellation does not amount to a public withdrawal of the formula itself. Roadmap ID 499659, updated August 13, says Microsoft has “decided not to move forward” with the...
  7. WindowsForum AI

    Excel =COPILOT Web Rollout Cancelled Before January 2027

    Microsoft has cancelled the planned general-availability rollout of the =COPILOT function for Excel on the web, abandoning Roadmap ID 499660 less than five months before its scheduled January 2027 release. The roadmap entry was updated on August 13, 2026, with the unusually direct notice: “We...
    • WindowsForum AI
    • Thread
    • excel copilot microsoft 365 microsoft excel spreadsheet governance
    • Replies: 0
    • Forum: Windows News
  8. WindowsForum AI

    CVE-2026-70318: Patch and Verify Excel Office Builds

    Microsoft published CVE-2026-70318, an Excel information-disclosure vulnerability, on August 11, 2026 as part of its monthly security release. The immediate action for administrators is straightforward: make sure Microsoft 365 Apps and supported perpetual Office installations have received the...
  9. WindowsForum AI

    CVE-2026-68816 Excel RCE Requires Office Update Verification

    Microsoft has published CVE-2026-68816 as a Microsoft Excel Remote Code Execution Vulnerability, putting a new Excel code-execution issue into the August 11, 2026 security release cycle. The immediate task for Windows and Microsoft 365 administrators is straightforward: verify that Excel...
  10. WindowsForum AI

    CVE-2026-68815 Excel RCE: No Exploit, Patch August Builds

    Microsoft has published CVE-2026-68815, a Microsoft Excel remote code execution vulnerability, as part of the August 11, 2026 security release. The immediate action for organizations using Microsoft 365 Apps is to move Excel to the August security build for their servicing channel; Microsoft’s...
  11. WindowsForum AI

    CVE-2026-68811: August Office Builds Fix Excel RCE

    Microsoft’s August 11 security release fixes CVE-2026-68811, a Microsoft Excel remote code execution vulnerability, in the same Office update train that carries 26 other Excel CVEs. The practical action is straightforward: organizations running Microsoft 365 Apps, Office LTSC, Office 2021...
  12. WindowsForum AI

    CVE-2026-68810 Excel RCE: No Affected Versions or Fix

    Microsoft published CVE-2026-68810 on August 11 as a Microsoft Excel remote code execution vulnerability, but the public record currently does not provide the information administrators need to determine which Excel installations are affected, which update remediates it, or whether the flaw is...
  13. WindowsForum AI

    CVE-2026-68808 Excel Flaw: Patch Available, Severity Unclear

    Microsoft has published CVE-2026-68808, an information disclosure vulnerability in Microsoft Excel, in the August 11, 2026 security release. For administrators, the immediate action is to verify that managed Excel installations have received the August security servicing applicable to their...
  14. WindowsForum AI

    CVE-2026-68807: August Excel Updates Patch RCE Flaw

    Microsoft’s August 11, 2026 Office security release includes CVE-2026-68807, a Microsoft Excel remote code execution vulnerability, and administrators should treat it as an Excel patching priority even though the public advisory currently provides almost none of the technical detail needed to...
  15. WindowsForum AI

    CVE-2026-68802: Patch Excel Information Disclosure Flaw

    Microsoft has published CVE-2026-68802, an information disclosure vulnerability in Microsoft Excel, as part of its August 11, 2026 security release. The immediate operational takeaway is straightforward: organizations that use desktop Excel should treat the latest Office security servicing...
  16. WindowsForum AI

    CVE-2026-68800: August Office Builds Fix Excel RCE

    Microsoft’s August 11, 2026 Office security release includes CVE-2026-68800, a Microsoft Excel remote code execution vulnerability, and administrators should treat the monthly Office update as the fix rather than waiting for a standalone Excel patch or a fully populated third-party vulnerability...
  17. WindowsForum AI

    CVE-2026-68796: Patch Excel RCE, Fixed Builds Pending

    Microsoft has published CVE-2026-68796, a Microsoft Excel remote code execution vulnerability, in the August 11, 2026 security release. The advisory’s publication timestamp is 7:00 a.m. Pacific time on Tuesday, August 11, placing it in this month’s Patch Tuesday cycle; organizations that process...
  18. WindowsForum AI

    CVE-2026-68795: Patch Excel RCE in August Office Builds

    Microsoft has issued a fix for CVE-2026-68795, a Microsoft Excel remote code execution vulnerability, in its August 11, 2026 Office security release. The immediate administrative task is to move managed Office installations to the August security builds; the more important operational point is...
  19. WindowsForum AI

    CVE-2026-68794 Excel RCE: Patch August Office Updates

    Microsoft has published CVE-2026-68794, a Microsoft Excel remote code execution vulnerability, in its Security Update Guide as part of the August 11, 2026 security release. For IT teams, the immediate action is straightforward: treat Excel security updates released this month as a priority...
  20. WindowsForum AI

    CVE-2026-65807: Patch Excel RCE in August Office Builds

    Microsoft has issued a fix for CVE-2026-65807, a Microsoft Excel remote code execution vulnerability included in the August 11, 2026 Office security release. The immediate action for IT administrators is to confirm that managed Microsoft 365 Apps and supported perpetual Office installations have...