Obtain a digital certificate and create a digital signature
To digitally sign an Office document, you must have a current (not expired) digital certificate. Digital certificates are typically issued by a certificate authority (CA), which is a trusted third-party entity that issues digital certificates for use by other parties.
View previous versions of Office files - Microsoft Support
Restore a previous version of an item or file in SharePoint. Enable and configure versioning for a list or library. Use Version History to view previous versions of files stored in OneDrive or …
Converting documents to a newer format - Microsoft Support
Learn how to convert Word documents to newer formats to use more recent features.
Embedded files or objects found - Microsoft Support
To verify the issue is resolved, click File > Info > Check for Issues, and click Inspect Document. The Document Inspector detects OLE Objects or packages that have been inserted from the Object dialog box (click Insert > Object in your Office application), or by using copy and paste commands. Here are examples of some object types:
Install Office updates - Microsoft Support
Learn how to update Microsoft Office on PC and troubleshooting tips for installing Office updates.
Customize the list of recently used files in Office apps
Microsoft Office programs display the last few documents you opened in that program so that you can use those links to quickly access the files. This feature is turned on by default, but you can …
Insert a table of figures - Microsoft Support
First add captions to your figures, and then use the Insert Table of Figures command on the References tab. Word then searches the document for your captions and automatically adds a list of figures, sorted by page number.
Use mail merge to personalize letters - Microsoft Support
Mail merge lets you create a batch of personalized letters where each letter is identical in layout, formatting, text, and graphics, except for personalized parts like the salutation. Go to Mailings > Start Mail Merge > Letters. In Word, type the body of …
Find and replace text - Microsoft Support
Go to Home > Replace. Enter the word or phrase you want to replace in Find what. Enter your new text in Replace with. Choose Replace All to change all occurrences of the word or phrase. Or, select Find Next until you find the one you want to update, and then choose Replace.
Protect a document with a password - Microsoft Support
You can control access to a document by implementing a password for it. Passwords are case-sensitive and can be a maximum of 15 characters long. Create a strong password, ideally one that you can easily remember. But in case you might forget, you should also keep a …
Insert ASCII or Unicode character codes in Word
Symbols and special characters are either inserted using ASCII or Unicode codes. You can tell which is which when you look up the code for the character. Go to Insert > Symbol > More Symbols. Find the symbol you want. Tip: The Segoe UI Symbol font has a very large collection of Unicode symbols to choose from.