check before: 2023-03-21
Product:
Microsoft 365 Apps
Platform:
Windows Desktop, World tenant
Status:
Launched
Change type:
New feature, Updated message, User impact
Links:
Details:
Updated March 22, 2023: The Administrative Template files for Microsoft 365 Apps for enterprise has been updated to include a policy to control blocking Excel XLL Add-ins from untrusted locations.
The policy is located under Administrative Templates > Microsoft Excel 2016 > Excel Options > Security > Trust Center > Block Excel XLL Add-ins that come from an untrusted source.
The new Administrative Template files and details are available at Microsoft Download Center.
We are introducing a default change for Excel Windows desktop apps that run XLL add-ins: XLL add-ins from untrusted locations will now be blocked by default.
For XLL add-ins in files from untrusted locations, you will no longer be able to enable content with a click of a button. A message will appear notifying you of the risk and a link to get more information about possible workarounds and support. This change will help you stay more secure by blocking popular attack techniques.
This message is associated with Microsoft 365 Roadmap ID 115485
[When this will happen:]
Preview: We have already completed rolling out to Insiders preview.
Standard Release: We will begin rolling out early March and expect to complete by late March.
Change Category:
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Scope:
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Release Phase:
Current Channel
Created:
2023-03-07
updated:
2023-03-23
Task Type
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MS How does it affect me
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change history
| Date | Property | old | new |
| 2023-03-23 | MC Messages | Updated March 7, 2023: We have updated the content below for clairty. Thank you for your patience.
We are introducing a default change for Excel Windows desktop apps that run XLL add-ins: XLL add-ins from untrusted locations will now be blocked by default. For XLL add-ins in files from untrusted locations, you will no longer be able to enable content with a click of a button. A message will appear notifying you of the risk and a link to get more information about possible workarounds and support. This change will help you stay more secure by blocking popular attack techniques. This message is associated with Microsoft 365 Roadmap ID 115485 [When this will happen:] Preview: We have already completed rolling out to Insiders preview. Standard Release: We will begin rolling out early March 2023 and expect to complete by late March 2023. | Updated March 22, 2023: The Administrative Template files for Microsoft 365 Apps for enterprise has been updated to include a policy to control blocking Excel XLL Add-ins from untrusted locations.
The policy is located under Administrative Templates > Microsoft Excel 2016 > Excel Options > Security > Trust Center > Block Excel XLL Add-ins that come from an untrusted source. The new Administrative Template files and details are available at Microsoft Download Center. We are introducing a default change for Excel Windows desktop apps that run XLL add-ins: XLL add-ins from untrusted locations will now be blocked by default. For XLL add-ins in files from untrusted locations, you will no longer be able to enable content with a click of a button. A message will appear notifying you of the risk and a link to get more information about possible workarounds and support. This change will help you stay more secure by blocking popular attack techniques. This message is associated with Microsoft 365 Roadmap ID 115485 [When this will happen:] Preview: We have already completed rolling out to Insiders preview. Standard Release: We will begin rolling out early March and expect to complete by late March. |
| 2023-03-23 | MC Last Updated | 03/07/2023 22:17:20 | 2023-03-23T04:31:13Z |
| 2023-03-23 | MC prepare | If your organization uses any Excel XLL add-ins, follow the steps provided in our support article to ensure those add-ins are coming from a trusted location.
Excel is blocking untrusted XLL add-ins by default https://support.microsoft.com/topic/excel-is-blocking-untrusted-xll-add-ins-by-default-1e3752e2-1177-4444-a807-7b700266a6fb https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=115485 | If your organization uses any Excel XLL add-ins, follow the steps provided in our support article to ensure those add-ins are coming from a trusted location.
Excel is blocking untrusted XLL add-ins by default https://support.microsoft.com/topic/excel-is-blocking-untrusted-xll-add-ins-by-default-1e3752e2-1177-4444-a807-7b700266a6fb https://www.microsoft.com/en-us/download/details.aspx?id=49030 https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=115485 |
| 2023-03-08 | MC Messages | We are introducing a default change for Excel Windows desktop apps that run XLL add-ins: XLL add-ins from untrusted locations will now be blocked by default.
For XLL add-ins in files from untrusted locations, you will no longer be able to enable content with a click of a button. A message will appear notifying you of the risk and a link to get more information about possible workarounds and support. This change will help you stay more secure by blocking popular attack techniques. This message is associated with Microsoft 365 Roadmap ID 115485 [When this will happen:] Preview: We have already completed rolling out to Insiders preview. Standard Release: We will begin rolling out early March and expect to complete by late March. | Updated March 7, 2023: We have updated the content below for clairty. Thank you for your patience.
We are introducing a default change for Excel Windows desktop apps that run XLL add-ins: XLL add-ins from untrusted locations will now be blocked by default. For XLL add-ins in files from untrusted locations, you will no longer be able to enable content with a click of a button. A message will appear notifying you of the risk and a link to get more information about possible workarounds and support. This change will help you stay more secure by blocking popular attack techniques. This message is associated with Microsoft 365 Roadmap ID 115485 [When this will happen:] Preview: We have already completed rolling out to Insiders preview. Standard Release: We will begin rolling out early March 2023 and expect to complete by late March 2023. |
| 2023-03-08 | MC Title | Excel is blocking untrusted XLL add-ins by default. | (Updated) Excel is blocking untrusted XLL add-ins by default. |
| 2023-03-08 | MC Last Updated | 03/07/2023 02:13:57 | 2023-03-07T22:17:20Z |
| 2023-03-08 | MC MessageTagNames | New feature, User impact | Updated message, New feature, User impact |
| 2023-03-08 | MC prepare | If your organization uses any Excel XLL add-ins, follow the steps provided in our support article to ensure those add-ins are coming from a trusted location.
https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=115485 | If your organization uses any Excel XLL add-ins, follow the steps provided in our support article to ensure those add-ins are coming from a trusted location.
Excel is blocking untrusted XLL add-ins by default https://support.microsoft.com/topic/excel-is-blocking-untrusted-xll-add-ins-by-default-1e3752e2-1177-4444-a807-7b700266a6fb https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=115485 |
Last updated 11 months ago
