Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel

Title: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel User impact: Users may have been unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel. More info: This issue may have specifically impacted some users utilizing Microsoft Excel 2024, 2021, 2019, and 2016. Affected users of Microsoft Excel 2016 can utilize the following link within the Microsoft Download Center to install the recently deployed fix: https://www.microsoft.com/en-us/download/details.aspx?id=108833 The following documentation provided additional updates on fix implementation for paste operations failing in Microsoft Excel: https://support.microsoft.com/en-us/support/known-issues/paste-not-work-excel The following documentation outlined the update history for Microsoft Excel 2016 and Microsoft Excel 2019: https://learn.microsoft.com/en-us/officeupdates/update-history-office-2019 Final status: We've deployed the updated versions of both Microsoft Excel 2016 and 2019, which we've confirmed through monitoring service health telemetry recovered all affected scenarios. The fix for Microsoft Excel 2019 should download automatically for users, while users of Microsoft Excel 2016 will need to download the latest version from the Microsoft Download Center. We've provided a direct link for affected users to download the fix within the More info section of this communication. Scope of impact: Some users attempting to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel may have been impacted. Start time: Tuesday, September 8, 2026, at 10:00 AM UTC End time: Tuesday, September 22, 2026, at 12:06 AM UTC Root cause: A code regression contained within a recent service update was causing impact. Next steps: - We're reviewing our update procedures to understand why impact to Microsoft Excel functionality wasn't caught during the testing phase. This will allow us to drive service improvements by proactively identifying similar issues in the future and improve our update testing processes. This is the final update for the event.

Title: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel User impact: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel. More info: This issue may specifically impact some users utilizing Microsoft Excel 2024, 2021, 2019, and 2016. For impact to Microsoft Excel 2016, users can utilize the following link to download the latest version (KB5002665) containing a code fix to remediate impact with the exception of paste issues: https://support.microsoft.com/en-us/servicing/office/hotfix/excel/5002665 For additional updates on fix implementation for paste operations failing in Microsoft Excel, please refer to the following documentation: https://support.microsoft.com/en-us/support/known-issues/paste-not-work-excel Current status: After completing deployment of our fixes for Microsoft Excel 2021 and 2024, we've created an updated build of Excel 2016 to address most impact scenarios with the exception of paste issues that is linked in the "More info" section of this communication. We are initiating deployment of updated versions Excel 2016 and Excel 2019, which will also remediate impact Office Online Server (OOS) versions of Excel, which will address paste issues and other reported impact scenarios. We anticipate these builds to be deployed along with updated documentation by our next scheduled update. Scope of impact: Some users attempting to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel may be impacted. This section may be updated as our investigation continues. Start time: Tuesday, September 8, 2026, at 10:00 AM UTC Root cause: A code regression contained within a recent service update is causing impact. Next update by: Tuesday, September 22, 2026, at 7:30 PM UTC

Title: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel User impact: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel. More info: This issue may specifically impact some users utilizing Microsoft Excel 2024, 2021, 2019, and 2016. Current status: Our fix has completed for Microsoft Excel 2021 and 2024. We're still in the process of validating both a temporary workaround and permanent fix for the 2016, 2019, and Office Online Server (OOS) versions of Excel. We'll provide the documentation on the workaround and timeline for the long-term fix as soon as they become available. Scope of impact: Some users attempting to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel may be impacted. This section may be updated as our investigation continues. Start time: Tuesday, September 8, 2026, at 10:00 AM UTC Root cause: A code regression contained within a recent service update is causing impact. Next update by: Monday, September 21, 2026, at 7:00 PM UTC

Title: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel User impact: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel. More info: This issue may specifically impact some users utilizing Microsoft Excel 2024, 2021, 2019, and 2016. Current status: We're continuing to test the efficacy of our fixes to confirm that they fully remediate the impact. In the meantime, we're validating a possible workaround and its viability to ensure it's practical to use and also fully avoids this issue while we work on the long-term solution. Scope of impact: Some users attempting to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel may be impacted. This section may be updated as our investigation continues. Start time: Tuesday, September 8, 2026, at 10:00 AM UTC Root cause: A code regression contained within a recent service update is causing impact. Next update by: Thursday, September 17, 2026, at 7:00 PM UTC

Title: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel User impact: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel. More info: This issue may specifically impact some users utilizing Microsoft Excel 2024, 2021, 2019, and 2016. Current status: Our development and validation of the individual fixes targeting each of the impacted versions is ongoing, and we'll provide an estimated timeline for resolution as one becomes available. Scope of impact: Some users attempting to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel may be impacted. This section may be updated as our investigation continues. Start time: Tuesday, September 8, 2026, at 10:00 AM UTC Root cause: A code regression contained within a recent service update is causing impact. Next update by: Tuesday, September 15, 2026, at 7:00 PM UTC

Title: Some users can't copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel User impact: Users can't copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel. More info: This issue may specifically impact some users utilizing Microsoft Excel 2024, 2021, 2019, and 2016. Current status: We've identified a code regression contained within a recent service update that's causing impact. We're developing separate fixes for each of the four impacted Microsoft Excel versions, and we'll aim to provide a remediation timeline by our next scheduled communications update. Scope of impact: Some users attempting to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel may be impacted. This section may be updated as our investigation continues. Start time: Tuesday, September 8, 2026, at 10:00 AM UTC Root cause: A code regression contained within a recent service update is causing impact. Next update by: Monday, September 14, 2026, at 6:30 PM UTC

Title: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel User impact: Users may be unable to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel. More info: This issue may specifically impact some users utilizing Microsoft Excel 2024, 2021, 2019, and 2016. Current status: We're reviewing service monitoring telemetry to isolate the source of the issue and establish a fix. Scope of impact: Some users attempting to copy, paste, drag, or duplicate cells and worksheets in Microsoft Excel may be impacted. This section may be updated as our investigation continues. Next update by: Friday, September 11, 2026, at 11:30 PM UTC