The presentation will open in Google Slides but remain a PowerPoint file as you can see next to the name on the top left. Click "File" and "Save" as Google Slide from the menu to convert it.

Contoured after a Google-like model, with only a single form inside a white background, this service can open pretty much any Microsoft Office file (doc, docx, ppt, pptx, pps, xls, xlsx) and a few ...

Microsoft Word can accommodate a surprising number of file formats, and even take in Excel and PowerPoint data, though it might look funny. Here's how.