Here’s how to open a presentation you already created in PowerPoint Online. Click on the File button in the top-left corner of your screen. Now click on Open.

Want to open old PowerPoint presentations in Protected View? Enable this setting in PowerPoint Options, Group Policy, and Registry.

Learn how to use a Microsoft 365 setting to choose whether to open files in the online or desktop app, giving you full control for each file.

We show you how to compress a PowerPoint slide, and reduce its file size. The more info you add, the more the size increases; esp. videos, audio, and images.

Microsoft Word can accommodate a surprising number of file formats, and even take in Excel and PowerPoint data, though it might look funny. Here's how.

Figure B Click the Open A PowerPoint File link. Use the resulting Browse dialog to locate the presentation file that contains the slides you want to insert. Select it and click Open.