How to Open a .ppsx File Without Triggering Slideshow Mode

A .ppsx file is a PowerPoint Slide Show file. When you double-click it, PowerPoint opens the file directly in full-screen slideshow mode. This behavior can be inconvenient if you need to edit the file, review static content, or present from a specific slide without advancing through the entire show. The cause is the file extension itself: .ppsx tells Windows and PowerPoint to launch the presentation in show mode rather than editing mode.

This article explains three reliable methods to open a .ppsx file in PowerPoint’s normal editing view. You will learn how to use PowerPoint’s Open dialog, a simple file rename trick, and a persistent registry-level fix for Windows users who work with .ppsx files regularly. Each method works in PowerPoint 2016, 2019, 2021, and Microsoft 365 on Windows 10 and Windows 11.

Why a .ppsx File Opens in Slideshow Mode by Default

The .ppsx extension is registered in Windows as a PowerPoint Slide Show file. When you double-click the file, Windows looks up the file association and passes a command-line argument to PowerPoint that tells it to start the presentation in slideshow mode. This is by design: .ppsx files are intended for distribution to audiences who only need to view the presentation, not edit it.

The file itself is identical in structure to a .pptx file. Both are ZIP archives containing XML data, media, and layout information. The only difference is the extension and the associated launch behavior. If you rename .ppsx to .pptx, the file content remains unchanged, and PowerPoint opens it in editing view. No conversion is needed.

PowerPoint also respects the file association setting in Windows. If you change the default handler for .ppsx files to open in editing mode, double-clicking will no longer trigger slideshow mode. This is the most permanent solution for frequent .ppsx users.

Method 1: Open the .ppsx File From Within PowerPoint

This method requires no file changes. You open PowerPoint first, then use the Open dialog to select the .ppsx file. PowerPoint reads the file extension but respects the Open command and loads the file in editing view.

1. Launch PowerPoint
   Open PowerPoint from the Start menu or desktop shortcut. A blank presentation or the PowerPoint start screen appears.
2. Go to File > Open
   Click the File tab in the ribbon, then click Open in the left sidebar. The Open pane shows recent files and cloud locations.
3. Click Browse
   Click the Browse button to open the standard Windows file dialog. Navigate to the folder containing your .ppsx file.
4. Select the .ppsx file and click Open
   Click the .ppsx file once to select it, then click the Open button. PowerPoint opens the file in Normal view with the slide thumbnail pane and editing canvas visible.

This method works immediately and does not alter any system settings or file associations. It is the safest option if you only need to open one or two .ppsx files occasionally.

Method 2: Rename the .ppsx Extension to .pptx

Renaming the file changes how Windows and PowerPoint treat it. A .pptx file always opens in editing view. The file content and quality remain identical because the underlying format is the same.

1. Enable file name extensions in File Explorer
   Open File Explorer. On the View tab, check the box labeled File name extensions. This makes the .ppsx suffix visible at the end of the file name.
2. Right-click the .ppsx file and choose Rename
   Right-click the file and select Rename from the context menu. The file name becomes editable.
3. Change .ppsx to .pptx
   Replace the .ppsx extension with .pptx. For example, change “Presentation.ppsx” to “Presentation.pptx”. Press Enter.
4. Confirm the rename warning
   Windows displays a warning that the file might become unusable if you change the extension. Click Yes to confirm. The file icon changes to the standard PowerPoint presentation icon.
5. Double-click the .pptx file
   Double-click the renamed file. PowerPoint opens it in Normal editing view.

After renaming, the file behaves exactly like any .pptx file. You can edit, save, and share it. If you need to return it to slideshow mode for distribution, rename it back to .ppsx.

Method 3: Change the File Association for .ppsx Files in Windows

This method modifies the Windows registry so that double-clicking any .ppsx file opens it in editing mode. It is the most permanent solution and is recommended for users who work with .ppsx files daily.

1. Open Settings in Windows
   Press the Windows key + I to open Settings. Click Apps, then click Default apps.
2. Search for .ppsx in the default apps page
   Scroll down and click the link labeled Choose defaults by file type. A long list of file extensions appears.
3. Find .ppsx and change the default app
   Scroll to the .ppsx entry. Click the current app icon next to it. From the popup, select PowerPoint. If PowerPoint does not appear, click More apps, then Look for another app on this PC, and browse to the PowerPoint executable (POWERPNT.EXE).
4. Set the command to open in editing mode
   After selecting PowerPoint, click the Manage button next to .ppsx. In the new window, click Edit. In the dialog, change the command line from "C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE" /s "%1" to "C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE" /o "%1". The /s switch starts slideshow mode; the /o switch opens in editing mode. Click Save.
5. Test the change
   Double-click any .ppsx file. It now opens in PowerPoint’s Normal editing view instead of slideshow mode.

This registry-level change affects all .ppsx files on the system. If you later need to restore the original slideshow behavior, repeat the steps and replace /o with /s.

Common Problems When Opening .ppsx Files

PowerPoint still opens in slideshow mode after renaming

If you renamed the file but it still opens in slideshow mode, Windows may still be using the old file association. Double-check that the file extension is now .pptx. Open File Explorer and verify the Type column shows “Microsoft PowerPoint Presentation” not “PowerPoint Slide Show”. If the extension did not change, you may have disabled file name extensions. Re-enable them from the View tab and repeat the rename.

File extension not visible in File Explorer

Windows hides file name extensions by default. To see them, open File Explorer, click the View tab, and check the File name extensions box. You must do this before renaming or before verifying the file type.

Cannot find the Manage button for .ppsx in Settings

In Windows 11, the Manage button appears only after you select a default app for a file type. If you do not see Manage, click the .ppsx entry, choose PowerPoint as the default app, then click the back arrow. Reopen the .ppsx entry and the Manage button should appear. In Windows 10, the same process works but the layout differs slightly.

Opening a .ppsx File in Editing View: Method Comparison

Item	Open from PowerPoint	Rename to .pptx	Change file association
Difficulty	None	Low	Medium
Permanence	One-time	Per-file	System-wide
Risk	None	None	Minor registry change
Best for	Occasional use	Sharing edited files	Daily .ppsx users
Steps required	4	5	5

The Open from PowerPoint method is the fastest for a single file. The rename method is best when you plan to edit and redistribute the file. The file association change is ideal if you frequently receive .ppsx files and want them to open in editing view automatically.

After applying one of these methods, you can open any .ppsx file in PowerPoint’s Normal view and edit slides, add content, or review speaker notes without the slideshow starting. To return a .ppsx file to its original behavior for distribution, rename it back or use the Save As dialog in PowerPoint to save a copy as PowerPoint Show (.ppsx).

If you work with presentations often, consider using Ctrl+O inside PowerPoint to open any file type regardless of extension. This keyboard shortcut opens the Open dialog directly and lets you bypass the default double-click behavior for all PowerPoint file formats.