Another option is to create a new file directly in SkyDrive. In this example, you create a new PowerPoint presentation.
Click Create.
Select PowerPoint Presentation from the menu.
Enter a presentation name.
Click the Create button.
Note
Supported Office Apps You can create Word documents, Excel workbooks, PowerPoint presentations, OneNote notebooks, and Excel Surveys in SkyDrive.
Select a theme to apply to your presentation.
Optionally, customize with a variant.
Click the Apply button.
The PowerPoint Web App opens in edit mode, where you can add content to your presentation.
Note
File-Creation Options You can edit this presentation in the Web App or download it later for use in the desktop version of PowerPoint.