Instead, you’re stuck loading your previously made PowerPoint presentation to OneDrive before it can be opened. Here’s how to open a presentation you already created in PowerPoint Online.

Extract media files including pictures, videos, and audio from PowerPoint Presentations by just renaming the file extension.

Power Point files, be it marked as .PPT, PPTX or with any other compatible extension out there, may be created, edited and viewed using online services.

Curse you and your ever-changing file formats, Microsoft! Here's how to import 20th-century presentations into PowerPoint 2007.

Likewise, the venerable .xls Excel spreadsheet format gave way to .xlsx, and PowerPoint .ppt files became .pptx files.