A Microsoft PowerPoint logo

PowerPoint files come in two formats: PPTX files are editable PowerPoint presentations and PPSX files are a view-only format intended for presentations. You can edit a PPSX file, but you must first convert it back to a PPTX format.

Changing the File Extension

Before trying anything else, it’s always worth seeing if you can just change the file extension. This works sometimes, although it depends on the version of Office you and your colleagues are using.

To change the file extension, right-click the file and choose “Rename.”

rename file

Change the file extension (if it exists in the file name) from .ppsx to .pptx.

pptx presentation

Double-click the file to open as normal in PowerPoint.

open presentation

In our case, that didn’t work. The file still opens as a PPSX presentation. So, we’ll move on and try another way.

Saving the File as a PPTX

PowerPoint can convert a PPSX file to a PPTX one. Here’s how.

First, open “PowerPoint” and choose File > Open to find the file you want to edit.

open presentation

Go to File > Save As to save the file.

save as

From the drop-down menu at the top right, choose “PowerPoint Presentation (*.pptx)” to save the file as an editable file you can share with colleagues. Be sure to hit the “Save” button when you’re done.

save as pptx

Now, when colleagues click to open the file, they’ll be taken to the PowerPoint editor to make quick edits and revisions.

Profile Photo for Bryan Clark Bryan Clark
Bryan has worked in journalism and publishing for more than 15 years. For the last 10 years, he's covered the technology beat, including gadgets, social media, security, and web culture. Before working as a freelancer, Bryan was the Managing Editor for The Next Web. These days he spends his time at a number of publications, both online and off, including The New York Times, Popular Science, and The Next Web, among others.
Read Full Bio »