Open the larger PowerPoint presentation to insert slides quickly from the smaller presentation. Edit the slide presentations separately before you combine them.

Microsoft updates Copilot in PowerPoint to allow Windows users to create new slides from files or documents, and even give them prompts.

How to Add a New Slide to PowerPoint. Microsoft's PowerPoint application can be an invaluable tool for creating business presentations to pitch new clients or to use as a visual aid in meetings ...

You can’t use SmartArt in PowerPoint 2003, but you can save the .pptx format to .ppt and run the presentation in PowerPoint 2003.