How to Use Slides from Another PowerPoint 2007 Presentation
Using slides from another PowerPoint presentation is handy when the slide you need already exists. Microsoft PowerPoint provides a special command on the Insert tab on the Ribbon to let you import a slide. Here are the steps:
Open the presentation you want to copy slides into.
Click the Insert tab on the Ribbon and then click the Add Slide button and choose Reuse Slides.
Click the Open a PowerPoint File link in the Reuse Slides task pane.
The Browse dialog box opens.
Locate the presentation you want to steal slides from and then click Open.
The slides from the presentation you selected are displayed in the Reuse Slides task pane.
(Optional) Select the Keep Source Formatting check box.
Only do this if you want the slides to retain their original formatting. With this option deselected, the slide assumes the theme of the presentation it is inserted into.
Click the slides you want to use.
Each slide you click is added to the presentation.
Click the X at the top right of the Reuse Slides task pane.
This closes it, and you’re all set!