Obtain a digital certificate and create a digital signature
If you plan to exchange digitally-signed documents together with other people, and you want the recipients of your documents to be able to verify the authenticity of your digital signature, you can obtain a digital certificate from a reputable third-party certificate authority (CA).
View digital signature and certificate details - Microsoft Support
Click File > Info > View Signatures. In the list, on a signature name, click the down-arrow, and then click Signature Details. From the Signature Details dialog box, you can determine if the signature is: Valid The signature is current. The certificate is trusted, and isn’t expired or revoked.
A subscription notice appears when I open a Microsoft 365 …
You might see a yellow warning bar across the top of the application with the following message: "ACCOUNT NOTICE. We've run into a problem with your Microsoft 365 subscription and need your help to fix it.”. This message is often triggered by a problem with your Microsoft 365 subscription payment.
Digital signatures and certificates - Microsoft Support
Important: Signed documents, which have a valid time stamp, are considered to have valid signatures, regardless of the age of the signing certificate. The certificate associated with the digital signature is issued to the signing publisher by a …
I am getting license validation errors with Copilot
Some users may encounter an issue when trying to access Microsoft 365 Copilot in Microsoft 365 apps when the file is hosted in a third-party storage location. In this scenario, users may encounter a license validation or other error message.
Manage data source settings and permissions (Power Query) - Microsoft …
Power Query saves a data source credential, or sign in identity, for each data source connection you have used and data source privacy levels. You can manage these settings, for example, to change your password.
Add or remove a digital signature for Microsoft 365 files
Add or remove a digital signature for Microsoft 365 files. Applies To. To learn about digital signatures (also known as digital ID), what they can be used for, and how to them in Word, Excel, and PowerPoint, see All about digital signatures.
Safe Documents - Microsoft Support
Safe Documents is a feature for Microsoft 365 Apps for enterprise that uses the Microsoft Defender Advanced Threat Protection cloud to scan documents and files opened in Protected View.
Create workbook links - Microsoft Support
A workbook link (previously called an external reference) is a way to combine data from other workbooks or other sheets in the same workbook. You might want to use them to: Link workbooks from several departments and then integrate pertinent data into a summary workbook.
Paste options - Microsoft Support
By default when you copy (or cut) and paste in Excel, everything in the source cell or range—data, formatting, formulas, validation, comments—is pasted to the destination cell (s). This is what happens when you press CTRL+V to paste. Since that might not be what you want, you have many other paste options, depending on what you copy.
More on data validation - Microsoft Support
You can use data validation to restrict the type of data or values that users enter into cells. This is an advanced topic on data validation. For an introduction to data validation, and how to validate a cell or a range, see Add data validation to a cell or a range.
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