Get started with PowerPoint for the web - Microsoft Support
https://support.microsoft.com/en-us/office/get-started-with-powerpoint-for-the-web-6303da7a-402a-4300-8b1c-160e8940cc34
webGo to Office.com. Click PowerPoint. Create a new, blank presentation, start with a template, or open an existing file. When you start with a new, blank presentation, PowerPoint automatically saves it to OneDrive with a default name, such as Presentation 1. To rename your presentation, do the following: On the File menu, select Rename.
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