By default, Excel and Word display a Paste Options button on the worksheet or document to provide you with special options, such as Keep Source Formatting, when you paste content. If you don't want to see this button every time that you paste content, you can turn this option off.
This article explains how to show or hide the Paste Options button on a PC. For Mac procedures, see Hide or display the Paste Options button on a Mac.
Click the File tab, then click Options.
Note: If you are using Excel 2007, click the Microsoft Office Button , and then click Excel Options or Word Options.
In the Advanced category, under Cut, copy, and paste, clear or select the Show Paste Options button when content is pasted check box to hide or display the Show Paste Options button.
Note: If you are using Excel 2007, the check box is titled Show Paste Options buttons