PowerPoint found unreadable content in Presentation.pptx. Do you want to recover the contects of this presentation? If you trust the source of this presentation, click Yes.
1. On the Home tab, in the Slides group, click New Slide, and then click Reuse Slides.
2. In the Reuse Slides pane, click Open a PowerPoint File.
3. In the Browse dialog box, locate and then click the presentation file that contains the slide that you want, and then click Open.