Remove hidden data and personal information by inspecting …
If you want to remove hidden data and personal information from documents that you save in the OpenDocument Text (.odt) format, you must run the Document Inspector every time that you save the document in that format.
Add a watermark in Excel - Microsoft Support
Microsoft Excel doesn’t come with a built-in watermark button. But you can use an image, like a logo, to create a watermark. Create a watermark. Select Insert > Header & Footer. Tap on the header and on the Header & Footer Elements tab on the ribbon, click Picture.
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.
Apply sensitivity labels to your files and email - Microsoft Support
The sensitivity bar makes it easy for you to see what label is applied to your file, and to apply or change a label whenever you need to, including when saving the file. Just select the sensitivity bar in the save dialog to see the labeling options for this file.
Remove or turn off hyperlinks - Microsoft Support
You can remove a hyperlink from a single address, remove many links at once, turn automatic hyperlinks off, and turn off the requirement to press Ctrl to follow a hyperlink. Remove a hyperlink. To remove a hyperlink but keep the text, right-click the hyperlink and click Remove Hyperlink.
Add or remove a sheet background - Microsoft Support
You can display watermark information on every printed page — for example, to indicate that the worksheet data is confidential or a draft copy — by inserting a picture that contains the watermark information in a header or footer.
Digital signatures and certificates - Microsoft Support
A digital signature is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered. The following is an example of a signature line. Top of Page.
Restrict changes to files in Excel - Microsoft Support
If you don't want content reviewers to accidentally change a Word document or an Excel spreadsheet, you can use formatting and editing restrictions. Note: To further restrict reviewers from making changes to your document or spreadsheet, you can make the file read-only or you can password protect it.
Import or export text (.txt or .csv) files - Microsoft Support
There are two ways to import data from a text file with Excel: you can open it in Excel, or you can import it as an external data range. To export data from Excel to a text file, use the Save As command and change the file type from the drop-down …
Copy and paste using the Office Clipboard - Microsoft Support
The Office Clipboard allows you to copy up to 24 items from Office documents or other programs and paste them into another Office document. For example, you can copy text from an email message, data from a workbook or datasheet, and a graphic from a presentation, and then paste them all into a document.
Add text on top of a photo - Microsoft Support
PowerPoint or Excel. Use a text box to add text on top of a photo. In your file, make sure that you've inserted a photo. On the Insert tab, in the Text group, click Text Box, drag to draw a text box anywhere near the picture, and then type your text.