PPSX to PPTX

Convert online and free PPSX to PPTX

Free: up to 750 MB per file (Premium: 20 GB)

Uploaded filetype:

Choose filetype:

Start Converting!

Converting in only three steps

Upload file

Choose target filetype

Download file!

convert .ppsx to . pptx

Advert:

4.0/5(5 votes)

PPSX is the PowerPoint slideshow format. Unlike "normal" PowerPoint files (PPTX), a PPSX file opens directly in presentation mode. The problem with this is that the file cannot be edited directly. If changes need to be made, the file must first be converted to PPTX.

When do I need to convert PPSX to PPTX?

Conversion is always necessary if you need to edit a presentation that you thought was finished. Or if you want to reuse slides or templates from the old presentation or add notes. Converting to PPTX also allows you to quickly correct any last-minute typos.

How does the change work technically?

PPSX (and PPTX) files are ZIP archives containing various XML and other files. To convert PPSX to PPTX, the value "Slideshow.main" must be changed to "Presentation.main" in the "[Content_Types].xml" file. After that, all you have to do is change the file extension to PPTX.

file-converter-online.com does exactly that in the background, ensuring that the PPSX file is a fully functional and visually identical PPTX file after conversion.

4.0/5(5 votes)

Last updated on 3. March 2026 by Sören with the experience of more than 128,100,223 converted files since 2013.

How to convert PPSX to PPTX online?

Upload PPSX file Choose your PPSX file with the "Choose File" Button, Drag & Drop or import it directly from Dropbox/Google Drive.
Choose target filetype PPTX is set as default target format. Change it if you need a different target filetype for your conversion.
Start Conversion Click "Start Converting!". Most files process in seconds, only the largest files may take a few minutes.
Download your PPTX file Download your finished PPTX file. Your files will be automatically deleted from our servers.

How to convert PPSX files online to PPTX

Back to Converter

Currently we support the following conversions with PPSX files:

All Converters

Information about the extensions for the conversion from PPSX to PPTX

From: PPSX

PPSX stands for PowerPoint SlideShow and is the presentation format for current PowerPoint files. Unlike PPTX files, SlideShow files open directly into the slide show view without first switching to PowerPoint’s editing mode. This format is therefore …

File extension: .ppsx
More information and converters for PPSX

To: PPTX

The pptx file extension is used by Microsoft PowerPoint 2007 and younger to store presentations. Earlier versions of PowerPoint use the ppt extension. Opening a pptx file launches the PowerPoint software in editor mode. There is another format, ppsx, …

File extension: .pptx
More information and converters for PPTX

Frequently asked Questions

Do I need Microsoft PowerPoint for the conversion?

No, the conversion takes place directly in the browser. PowerPoint is not necessary.

Can I just change the file extension?

Unfortunately, this does not work. Although the file structure is similar and both are based on XML formats, simply renaming the file is not sufficient.

Video-Tutorial: PPSX to PPTX

File-Converter-Online.com converts your files for free – no registration, no installation, no watermarks. Works on any device - Windows, macOS, Linux, Android and iOS. The free version supports files up to 750 MB, with Premium up to 20 GB. Our servers are located in Germany, all files are encrypted during transfer and automatically deleted after conversion. Since 2013, we have converted over 128,100,223 files - if you have any questions or issues, you can reach us anytime via the contact form.