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.
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.
Insert page numbers on worksheets - Microsoft Support
You can insert page numbers for a worksheet in Page Layout view, where you can see them, or you can use the Page Setup dialog box if you want to insert page numbers for more than one worksheet at the same time.
Insert, move, or delete page breaks in a worksheet
Add, adjust or remove page breaks in Excel using Page Break Preview. Also, learn how to reset and hide page breaks.
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. Select one of the available options to insert your image.
Remove hidden data and personal information by inspecting …
Document Inspector helps you find and remove hidden data and personal information stored in documents that you plan to share. Here's how to use it. Tip: If you're just looking to print without comments, on the File tab select Print, choose Print All Pages, and clear Print Markup.
Make a picture transparent - Microsoft Support
Add a background or watermark to slides. Remove the background of a picture. Change the brightness, contrast, or sharpness of a picture. Change the color of a picture. Apply an artistic effect to a picture
Insert pictures - Microsoft Support
Insert a watermark; Show the ruler; Rotate a picture or shape; Wrap text around a picture
Apply sensitivity labels to your files and email - Microsoft Support
You can apply sensitivity labels to your files and emails to keep them compliant with your organization's information protection policies.
Headers and footers in a worksheet - Microsoft Support
Excel has many built-in text headers and footers that you can use. For worksheets, you can work with headers and footers in Page Layout view. For chart sheets or charts you need to go through the Page Setup dialog box. Select the worksheet where you want to add or change a built-in header or footer.
Insert WordArt - Microsoft Support
WordArt is a quick way to make text stand out with special effects. You begin by picking a WordArt style from the WordArt gallery on the Insert tab, and then customize the text as you wish. Important: In Word and Outlook, you must first anchor multiple objects before selecting them. Select one object.