When you launch PowerPoint Online, it opens Presentation Gallery that provides you with a list of recently opened PowerPoint documents, and Themes and Templates to start a new presentation. You can navigate to OneDrive folders so as to locate a PowerPoint file to open within PowerPoint Online. Other than OneDrive, PowerPoint Online also supports Dropbox as a cloud alternative.
To learn more, choose your version of PowerPoint. If we do not have a tutorial for your version of PowerPoint, explore the version closest to the one you use.
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