Fix PowerPoint can’t save file Here are the methods that you should try if you find that PowerPoint can’t save your files: Save file to a new PowerPoint Presentation Fix corrupted presentation ...

That honour still belongs to PowerPoint, and while it’s possible to open that program’s files in Keynote, the reverse is a little more complicated.

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