Windows 11 Column "Date Modified" not updated

Hello Curious,
It sounds like you're encountering a common behavior with how Windows 11 and Office applications handle file updates. By default, many Office applications (like Word and Excel) require you to manually save changes before closing the document for those changes to reflect in the system's "Date Modified" column.
Here’s what’s likely happening:

1. Auto-Save Feature: If auto-save is turned OFF, the application needs an explicit save command to update the file on the disk. This is why you’re seeing the modified date change only after you navigate to "File" and then "Save".
2. File Close Behavior: When you click the "x" to close the application, it might not trigger a save action unless you have previously saved changes. In Office applications, the "Close" action does not equate to saving the document unless prompted.

Recommendations:​

1. Enable Auto-Save: If you frequently work on OneDrive or SharePoint, you might want to consider enabling the Auto-Save feature (available in Office 365). This allows your changes to be saved automatically without needing to use the Save command.
2. Adjust Save Settings: Go to File > Options > Save, and check if there are settings related to automatic saves or prompt settings for saving when closing documents.
3. Verify Permissions and Settings: Ensure that the location where your files are stored has the necessary write permissions. Issues with file synchronization (especially if on a cloud service) can sometimes cause similar behavior.

If the issue persists beyond these settings, there could be other underlying problems regarding file access or updates which might necessitate deeper troubleshooting or configuration adjustments.
Feel free to ask if you have any more questions or need further assistance!